Only call git-rerere if $GIT_DIR/rr-cache exists.
Johannes noticed that git-rerere depends on Digest.pm, and if
one does not use the command, one can live without it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/git-commit.sh b/git-commit.sh
index 073ec81..59551d9 100755
--- a/git-commit.sh
+++ b/git-commit.sh
@@ -638,7 +638,10 @@
fi
ret="$?"
rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG"
-git-rerere
+if test -d "$GIT_DIR/rr-cache"
+then
+ git-rerere
+fi
if test -x "$GIT_DIR"/hooks/post-commit && test "$ret" = 0
then
