auth: passdb/userdb dict settings file parsing didn't handle errors correctly. Found by Coverity
auth: passdb/userdb dict settings file parsing didn't handle errors correctly.
Found by Coverity

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