As a follow-up / to make this clearer: This not a bug, it's a feature (tm).
Upstream deliberately forbids . and .. -- imagine being in a softlinked directory and using .. -- this would result in unintended behavior. Thus, they decided to err on the safe side. -- Richard -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

