Fix "git-fetch --tags" exit status when nothing has been changed

After commit 55b7835 git-fetch --tags
exits with status 1 when no tags have been changed, which breaks calling
git-fetch from scripts.

Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Junio C Hamano <junkio@cox.net>

git-fetch.sh

@@ -153,7 +153,7 @@ fast_forward_local () {
 	then
 		if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2"
 		then
-			[ "$verbose" ] && echo >&2 "* $1: same as $3"
+			[ "$verbose" ] && echo >&2 "* $1: same as $3" ||:
 		else
 			echo >&2 "* $1: updating with $3"
 			git-update-ref -m "$rloga: updating tag" "$1" "$2"