remote rename: warn when refspec was not updated
remote rename: warn when refspec was not updated

When renaming a remote, we also try to update the fetch refspec
accordingly, but only if it has the default format. For others, such
as refs/heads/master:refs/heads/origin, we are conservative and leave
it untouched. Let's give the user a warning about refspecs that are
not updated, so he can manually update the config if necessary.

Suggested-by: Jeff King <696e3fbcf235d40b6ea1ebd61c87cbea79d444e7@peff.net>
Signed-off-by: Martin von Zweigbergk <4a0689660d2c85c65ee5252dabed282f8fad3a91@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git