digest_md5_generate(): If username isn't given, give an error message instead of crashing. Mostly to avoid crashing with dovecotpw utility.
digest_md5_generate(): If username isn't given, give an error message
instead of crashing. Mostly to avoid crashing with dovecotpw utility.

damoxc/dovecot,Distrotech/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,Distrotech/dovecot,LTD-Beget/dovecot,Distrotech/dovecot,Distrotech/dovecot,damoxc/dovecot,LTD-Beget/dovecot,damoxc/dovecot,damoxc/dovecot,damoxc/dovecot,Distrotech/dovecot,LTD-Beget/dovecot