difftool--helper: add explicit exit statement

git-difftool--helper returns a zero exit status unless
--trust-exit-code is in effect.  Add an explicit exit statement
to make this clearer.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/git-difftool--helper.sh b/git-difftool--helper.sh
index d4fb6dfe13..2b11b1d6fe 100755
--- a/git-difftool--helper.sh
+++ b/git-difftool--helper.sh
@@ -94,3 +94,5 @@ else
 		shift 7
 	done
 fi
+
+exit 0