All I know is the user had better not forget -o<directory> or else his precious mailbox will be interpreted as something else... Actually the problem is with builtin-mailsplit.c, $ git mailsplit -o fatal: unknown option: -o One big tangle. So I would just say + certain backward compatibility mode (that we won't detail here). -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html