auth: Give better EACCES error if we can't connect to auth-worker.
auth: Give better EACCES error if we can't connect to auth-worker.

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot