Apply suggestions from code review

Co-authored-by: Ville Skyttä <ville.skytta@iki.fi>

Author: akinomyoga

.gitignore

@@ -14,7 +14,7 @@ pytestdebug.log
 Makefile
 Makefile.in
 /aclocal.m4
-/autom4te.cache
+/autom4te.cache/
 /compile
 /depcomp
 /config.log