Fix problem with ar_to_bc.sh script introduced by r357450.
The new code wasn't matching absolute paths correctly. Should unbreak
sanitizer-x86_64-linux bot.
@@ -9,8 +9,8 @@ if [ "$#" -le 1 ]; then
usage
fi
-[[ AR == /* ]] || AR=$PWD/$AR
-[[ LINK == /* ]] || LINK=$PWD/$LINK
+[[ $AR == /* ]] || AR=$PWD/$AR
+[[ $LINK == /* ]] || LINK=$PWD/$LINK
INPUTS=
OUTPUT=
