diff --git a/lib/irb.rb b/lib/irb.rb
index 8e40ffb4d..9a3a49164 100644
--- a/lib/irb.rb
+++ b/lib/irb.rb
@@ -51,54 +51,7 @@
 #
 # == Command line options
 #
-#   Usage:  irb.rb [options] [programfile] [arguments]
-#     -f                Suppress read of ~/.irbrc
-#     -d                Set $DEBUG to true (same as `ruby -d')
-#     -r load-module    Same as `ruby -r'
-#     -I path           Specify $LOAD_PATH directory
-#     -U                Same as `ruby -U`
-#     -E enc            Same as `ruby -E`
-#     -w                Same as `ruby -w`
-#     -W[level=2]       Same as `ruby -W`
-#     --context-mode n  Set n[0-4] to method to create Binding Object,
-#                       when new workspace was created
-#     --extra-doc-dir   Add an extra doc dir for the doc dialog
-#     --echo            Show result (default)
-#     --noecho          Don't show result
-#     --echo-on-assignment
-#                       Show result on assignment
-#     --noecho-on-assignment
-#                       Don't show result on assignment
-#     --truncate-echo-on-assignment
-#                       Show truncated result on assignment (default)
-#     --inspect         Use `inspect' for output
-#     --noinspect       Don't use inspect for output
-#     --multiline       Use multiline editor module
-#     --nomultiline     Don't use multiline editor module
-#     --singleline      Use singleline editor module
-#     --nosingleline    Don't use singleline editor module
-#     --colorize        Use colorization
-#     --nocolorize      Don't use colorization
-#     --autocomplete    Use autocompletion
-#     --noautocomplete  Don't use autocompletion
-#     --prompt prompt-mode/--prompt-mode prompt-mode
-#                       Switch prompt mode. Pre-defined prompt modes are
-#                       `default', `simple', `xmp' and `inf-ruby'
-#     --inf-ruby-mode   Use prompt appropriate for inf-ruby-mode on emacs.
-#                       Suppresses --multiline and --singleline.
-#     --sample-book-mode/--simple-prompt
-#                       Simple prompt mode
-#     --noprompt        No prompt mode
-#     --single-irb      Share self with sub-irb.
-#     --tracer          Display trace for each execution of commands.
-#     --back-trace-limit n
-#                       Display backtrace top n and tail n. The default
-#                       value is 16.
-#     --verbose         Show details
-#     --noverbose       Don't show details
-#     -v, --version	    Print the version of irb
-#     -h, --help        Print help
-#     --                Separate options of irb from the list of command-line args
+#   :include: ./irb/lc/help-message
 #
 # == Configuration
 #
diff --git a/lib/irb/lc/help-message b/lib/irb/lc/help-message
index 39cbd11bc..3405fa775 100644
--- a/lib/irb/lc/help-message
+++ b/lib/irb/lc/help-message
@@ -1,14 +1,3 @@
-# -*- coding: utf-8 -*-
-#
-#   irb/lc/help-message.rb -
-#   	$Release Version: 0.9.6$
-#   	$Revision$
-#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
-#
-# --
-#
-#
-#
 Usage:  irb.rb [options] [programfile] [arguments]
   -f                Don't initialize from configuration file.
   -d                Set $DEBUG and $VERBOSE to true (same as 'ruby -d').
@@ -58,5 +47,3 @@ Usage:  irb.rb [options] [programfile] [arguments]
   -v, --version     Print the version of irb.
   -h, --help        Print help.
   --                Separate options of irb from the list of command-line args.
-
-# vim:fileencoding=utf-8
diff --git a/lib/irb/lc/ja/help-message b/lib/irb/lc/ja/help-message
index 238535afb..1c15d331e 100644
--- a/lib/irb/lc/ja/help-message
+++ b/lib/irb/lc/ja/help-message
@@ -1,13 +1,3 @@
-# -*- coding: utf-8 -*-
-#   irb/lc/ja/help-message.rb -
-#   	$Release Version: 0.9.6$
-#   	$Revision$
-#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
-#
-# --
-#
-#
-#
 Usage:  irb.rb [options] [programfile] [arguments]
   -f		    ~/.irbrc を読み込まない.
   -d                $DEBUG をtrueにする(ruby -d と同じ)
@@ -53,5 +43,3 @@ Usage:  irb.rb [options] [programfile] [arguments]
   -v, --version	    irbのバージョンを表示する.
   -h, --help	    irb のヘルプを表示する.
   --		    以降のコマンドライン引数をオプションとして扱わない.
-
-# vim:fileencoding=utf-8