Re: [PATCH] git-commit: Only call git-rerere if $GIT_DIR/rr-cache exists

Johannes Schindelin [off-list ref] writes:

This makes an error go away if you do not have Digest.pm installed, but
do not intend to make use of git-rerere anyway.

Ah, I did not realize that dependency.  Thanks.
I think there is at least one more place it does it.