IFS clobbering workaround

This is not because of too much haskell programming. It's because using
IFS in shell is always followed by chasing down IFS clobbering portability
bugs in shell, no matter how careful you are.

1 files changed, 4 insertions, 3 deletions

diff --git a/functions b/functions
index 74f0e0b..80844de 100644
--- a/functions
+++ b/functions
@@ -6,14 +6,15 @@ smallyes() {
 }
 
 in_path () {
-	IFS=":" _in_path "$1"
-}
-_in_path () {
+	local OLD_IFS="$IFS"
+	IFS=":"
 	for dir in $PATH; do
 		if [ -x "$dir/$1" ]; then
+			IFS="$OLD_IFS"
 			return 0
 		fi
 	done
+	IFS="$OLD_IFS"
 	return 1
 }