Set LANG=C internally when doing some operations that have been reported to fail in other locales.

Bug report:

> + egrep -q '[^-a-z_]'
> + echo 'etckeeper: invalid command init'

Strangely, I cannot reproduce this problem when using the
LANG=et_EE.UTF-8 locale. I guess our egreps are somehow behaving
differently, even though a-z is not a character class that should be
affected by locale AFAIK.

I'll go ahead and set LANG=C when calling things that use character
classes.

1 files changed, 2 insertions, 2 deletions

diff --git a/etckeeper b/etckeeper
index e669537..6671e24 100755
--- a/etckeeper
+++ b/etckeeper
@@ -79,7 +79,7 @@ elif [ "$command" = "pre-apt" ]; then
 	command=pre-install
 fi
 
-if echo "$command" | egrep -q '[^-a-z_]'; then
+if echo "$command" | LANG=C egrep -q '[^-a-z_]'; then
 	echo "etckeeper: invalid command $command" >&2
 	exit 1
 fi
@@ -121,7 +121,7 @@ fi
 export VCS
 
 lsscripts() {
-	perl -e '
+	LANG=C perl -e '
 		$dir=shift;
 		print join "\n", grep { ! -d $_ && -x $_ }
 			grep /^\Q$dir\/\E[-a-zA-Z0-9]+$/,