doveadm: Don't refer to old doveadm_proxy_port setting name in error message.
doveadm: Don't refer to old doveadm_proxy_port setting name in error message.

jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot