diff --git a/src/libbacktrace/ChangeLog.jit b/src/libbacktrace/ChangeLog.jit
index 5ab329c696d77..6b60e3b3b0738 100644
--- a/src/libbacktrace/ChangeLog.jit
+++ b/src/libbacktrace/ChangeLog.jit
@@ -6,7 +6,7 @@
 
 	* configure.ac: Add --enable-host-shared.
 	* configure: Regenerate.
-
+
 Copyright (C) 2013-2014 Free Software Foundation, Inc.
 
 Copying and distribution of this file, with or without modification,
diff --git a/src/libbacktrace/Makefile.am b/src/libbacktrace/Makefile.am
index ea78c70163216..c5f0dcbcf7a19 100644
--- a/src/libbacktrace/Makefile.am
+++ b/src/libbacktrace/Makefile.am
@@ -6,12 +6,12 @@
 # met:
 
 #     (1) Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
+#     notice, this list of conditions and the following disclaimer. 
 
 #     (2) Redistributions in binary form must reproduce the above copyright
 #     notice, this list of conditions and the following disclaimer in
 #     the documentation and/or other materials provided with the
-#     distribution.
+#     distribution.  
 
 #     (3) The name of the author may not be used to
 #     endorse or promote products derived from this software without
diff --git a/src/libbacktrace/Makefile.in b/src/libbacktrace/Makefile.in
index 16b1a72712ffd..b434d76edb620 100644
--- a/src/libbacktrace/Makefile.in
+++ b/src/libbacktrace/Makefile.in
@@ -23,12 +23,12 @@
 # met:
 
 #     (1) Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
+#     notice, this list of conditions and the following disclaimer. 
 
 #     (2) Redistributions in binary form must reproduce the above copyright
 #     notice, this list of conditions and the following disclaimer in
 #     the documentation and/or other materials provided with the
-#     distribution.
+#     distribution.  
 
 #     (3) The name of the author may not be used to
 #     endorse or promote products derived from this software without
@@ -137,10 +137,10 @@ LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	$(LDFLAGS) -o $@
 SOURCES = $(libbacktrace_la_SOURCES) $(EXTRA_libbacktrace_la_SOURCES) \
 	$(btest_SOURCES) $(stest_SOURCES)
-MULTISRCTOP =
-MULTIBUILDTOP =
-MULTIDIRS =
-MULTISUBDIR =
+MULTISRCTOP = 
+MULTIBUILDTOP = 
+MULTIDIRS = 
+MULTISUBDIR = 
 MULTIDO = true
 MULTICLEAN = true
 am__can_run_installinfo = \
@@ -389,7 +389,7 @@ config.h: stamp-h1
 stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
 	@rm -f stamp-h1
 	cd $(top_builddir) && $(SHELL) ./config.status config.h
-$(srcdir)/config.h.in: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+$(srcdir)/config.h.in: @MAINTAINER_MODE_TRUE@ $(am__configure_deps) 
 	($(am__cd) $(top_srcdir) && $(AUTOHEADER))
 	rm -f stamp-h1
 	touch $@
@@ -407,7 +407,7 @@ clean-noinstLTLIBRARIES:
 	  echo "rm -f \"$${dir}/so_locations\""; \
 	  rm -f "$${dir}/so_locations"; \
 	done
-libbacktrace.la: $(libbacktrace_la_OBJECTS) $(libbacktrace_la_DEPENDENCIES) $(EXTRA_libbacktrace_la_DEPENDENCIES)
+libbacktrace.la: $(libbacktrace_la_OBJECTS) $(libbacktrace_la_DEPENDENCIES) $(EXTRA_libbacktrace_la_DEPENDENCIES) 
 	$(LINK)  $(libbacktrace_la_OBJECTS) $(libbacktrace_la_LIBADD) $(LIBS)
 
 clean-checkPROGRAMS:
@@ -418,10 +418,10 @@ clean-checkPROGRAMS:
 	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
 	echo " rm -f" $$list; \
 	rm -f $$list
-btest$(EXEEXT): $(btest_OBJECTS) $(btest_DEPENDENCIES) $(EXTRA_btest_DEPENDENCIES)
+btest$(EXEEXT): $(btest_OBJECTS) $(btest_DEPENDENCIES) $(EXTRA_btest_DEPENDENCIES) 
 	@rm -f btest$(EXEEXT)
 	$(btest_LINK) $(btest_OBJECTS) $(btest_LDADD) $(LIBS)
-stest$(EXEEXT): $(stest_OBJECTS) $(stest_DEPENDENCIES) $(EXTRA_stest_DEPENDENCIES)
+stest$(EXEEXT): $(stest_OBJECTS) $(stest_DEPENDENCIES) $(EXTRA_stest_DEPENDENCIES) 
 	@rm -f stest$(EXEEXT)
 	$(LINK) $(stest_OBJECTS) $(stest_LDADD) $(LIBS)
 
diff --git a/src/libbacktrace/alloc.c b/src/libbacktrace/alloc.c
index c9d6a1406b7b2..143ef68ca5148 100644
--- a/src/libbacktrace/alloc.c
+++ b/src/libbacktrace/alloc.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/atomic.c b/src/libbacktrace/atomic.c
index 40e4ff93cf68a..fdd2490da7c6b 100644
--- a/src/libbacktrace/atomic.c
+++ b/src/libbacktrace/atomic.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/backtrace-supported.h.in b/src/libbacktrace/backtrace-supported.h.in
index 976963e71041b..ab051a1689826 100644
--- a/src/libbacktrace/backtrace-supported.h.in
+++ b/src/libbacktrace/backtrace-supported.h.in
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/backtrace.c b/src/libbacktrace/backtrace.c
index 8941375c6cd55..d352d27a4006d 100644
--- a/src/libbacktrace/backtrace.c
+++ b/src/libbacktrace/backtrace.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/backtrace.h b/src/libbacktrace/backtrace.h
index f16ee36cbce9a..50dcd40751b22 100644
--- a/src/libbacktrace/backtrace.h
+++ b/src/libbacktrace/backtrace.h
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/btest.c b/src/libbacktrace/btest.c
index a950a704f071d..9821e34c0c1ba 100644
--- a/src/libbacktrace/btest.c
+++ b/src/libbacktrace/btest.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
@@ -460,7 +460,7 @@ f23 (int f1line, int f2line)
 		       (unsigned int) bdata.index, j + 1);
 	      bdata.failed = 1;
 	    }
-	}
+	}      
 
       check ("test3", 0, all, f3line, "f23", &bdata.failed);
       check ("test3", 1, all, f2line, "f22", &bdata.failed);
diff --git a/src/libbacktrace/configure.ac b/src/libbacktrace/configure.ac
index 30d890ef14a9f..a0e487bb42d71 100644
--- a/src/libbacktrace/configure.ac
+++ b/src/libbacktrace/configure.ac
@@ -6,13 +6,13 @@
 # met:
 
 #     (1) Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
+#     notice, this list of conditions and the following disclaimer. 
 
 #     (2) Redistributions in binary form must reproduce the above copyright
 #     notice, this list of conditions and the following disclaimer in
 #     the documentation and/or other materials provided with the
-#     distribution.
-
+#     distribution.  
+    
 #     (3) The name of the author may not be used to
 #     endorse or promote products derived from this software without
 #     specific prior written permission.
diff --git a/src/libbacktrace/dwarf.c b/src/libbacktrace/dwarf.c
index fd3beac01fbaf..54e5ace9b4a68 100644
--- a/src/libbacktrace/dwarf.c
+++ b/src/libbacktrace/dwarf.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
@@ -1246,7 +1246,7 @@ add_unit_ranges (struct backtrace_state *state, uintptr_t base_address,
 
 static int
 find_address_ranges (struct backtrace_state *state, uintptr_t base_address,
-		     struct dwarf_buf *unit_buf,
+		     struct dwarf_buf *unit_buf, 
 		     const unsigned char *dwarf_str, size_t dwarf_str_size,
 		     const unsigned char *dwarf_ranges,
 		     size_t dwarf_ranges_size,
@@ -1605,7 +1605,7 @@ read_line_header (struct backtrace_state *state, struct unit *u,
 
   if (!advance (line_buf, hdrlen))
     return 0;
-
+  
   hdr->min_insn_len = read_byte (&hdr_buf);
   if (hdr->version < 4)
     hdr->max_ops_per_insn = 1;
@@ -1614,7 +1614,7 @@ read_line_header (struct backtrace_state *state, struct unit *u,
 
   /* We don't care about default_is_stmt.  */
   read_byte (&hdr_buf);
-
+  
   hdr->line_base = read_sbyte (&hdr_buf);
   hdr->line_range = read_byte (&hdr_buf);
 
diff --git a/src/libbacktrace/dwarf2.def b/src/libbacktrace/dwarf2.def
index 932ce86435131..71a37b30c9f87 100644
--- a/src/libbacktrace/dwarf2.def
+++ b/src/libbacktrace/dwarf2.def
@@ -47,27 +47,27 @@
 
 /* This file declares various DWARF-related constants using a set of
    macros which can be redefined by the including file.
-
+   
    The macros are in sections.  Each section corresponds to a single
    set of DWARF constants and has a corresponding key.  The key is
    used in all the macro names.
-
+   
    The sections are TAG (for DW_TAG_ constants), FORM (DW_FORM_), AT
    (DW_AT_), OP (DW_OP_), ATE (DW_ATE_), and CFA (DW_CFA_).
-
+   
    Using TAG as an example, the following macros may be used for each
    key:
-
+   
    DW_FIRST_TAG(name, value) - Introduce the first DW_TAG constant.
-
+   
    DW_TAG(name, value) - Define a subsequent constant.
-
+   
    DW_TAG_DUP(name, value) - Define a subsequent constant whose value
    is a duplicate of some other constant.  Not all keys use the _DUP
    macro form.  If more than one name shares a value, then the base
    (DW_TAG) form will be the preferred name and DW_TAG_DUP will hold
    any alternate names.
-
+   
    DW_END_TAG - Invoked at the end of the DW_TAG constants.  */
 
 DW_FIRST_TAG (DW_TAG_padding, 0x00)
diff --git a/src/libbacktrace/dwarf2.h b/src/libbacktrace/dwarf2.h
index c7d49ebb2401b..120e2c16b4820 100644
--- a/src/libbacktrace/dwarf2.h
+++ b/src/libbacktrace/dwarf2.h
@@ -352,7 +352,7 @@ enum dwarf_macro_record_type
     DW_MACRO_GNU_lo_user = 0xe0,
     DW_MACRO_GNU_hi_user = 0xff
   };
-
+
 /* @@@ For use with GNU frame unwind information.  */
 
 #define DW_EH_PE_absptr		0x00
diff --git a/src/libbacktrace/elf.c b/src/libbacktrace/elf.c
index f0709c9c355dc..3f14b11a43c83 100644
--- a/src/libbacktrace/elf.c
+++ b/src/libbacktrace/elf.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/fileline.c b/src/libbacktrace/fileline.c
index c151147213431..0acad0603eeb0 100644
--- a/src/libbacktrace/fileline.c
+++ b/src/libbacktrace/fileline.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/internal.h b/src/libbacktrace/internal.h
index f6046ee6057c5..30f99ca127f8e 100644
--- a/src/libbacktrace/internal.h
+++ b/src/libbacktrace/internal.h
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/mmap.c b/src/libbacktrace/mmap.c
index 610548a8a4e22..1ecf131191142 100644
--- a/src/libbacktrace/mmap.c
+++ b/src/libbacktrace/mmap.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/mmapio.c b/src/libbacktrace/mmapio.c
index 45f81a8593d9f..b5a787e0aa6fd 100644
--- a/src/libbacktrace/mmapio.c
+++ b/src/libbacktrace/mmapio.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/nounwind.c b/src/libbacktrace/nounwind.c
index 9952c0bcbfb7b..f53f906b5a89c 100644
--- a/src/libbacktrace/nounwind.c
+++ b/src/libbacktrace/nounwind.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/posix.c b/src/libbacktrace/posix.c
index f6260a0044eaa..7fa7cd0d5da67 100644
--- a/src/libbacktrace/posix.c
+++ b/src/libbacktrace/posix.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/print.c b/src/libbacktrace/print.c
index 271f41c0c59bf..90ecaf89edad0 100644
--- a/src/libbacktrace/print.c
+++ b/src/libbacktrace/print.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/read.c b/src/libbacktrace/read.c
index 70dd91ee97c8f..299f77ba7c629 100644
--- a/src/libbacktrace/read.c
+++ b/src/libbacktrace/read.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/simple.c b/src/libbacktrace/simple.c
index fc0f4f498012c..39c2e902ff77b 100644
--- a/src/libbacktrace/simple.c
+++ b/src/libbacktrace/simple.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/sort.c b/src/libbacktrace/sort.c
index 01b1cb2b8a555..bcc765e93aa77 100644
--- a/src/libbacktrace/sort.c
+++ b/src/libbacktrace/sort.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/state.c b/src/libbacktrace/state.c
index 373938865c7ff..a846378e903c2 100644
--- a/src/libbacktrace/state.c
+++ b/src/libbacktrace/state.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/stest.c b/src/libbacktrace/stest.c
index 510715291895c..ec93e680e89ed 100644
--- a/src/libbacktrace/stest.c
+++ b/src/libbacktrace/stest.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
diff --git a/src/libbacktrace/unknown.c b/src/libbacktrace/unknown.c
index 953e96e510e59..e89cba96f7d91 100644
--- a/src/libbacktrace/unknown.c
+++ b/src/libbacktrace/unknown.c
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+    notice, this list of conditions and the following disclaimer. 
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.
-
+    distribution.  
+    
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.