auth: DIGEST-MD5 supports authorization id now. Patch by Yubao Liu.
auth: DIGEST-MD5 supports authorization id now.
Patch by Yubao Liu.

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