doveconf: Warning: ssl_disable has been renamed to ssl

[root@zhm conf.d]# service dovecot restart
停止 Dovecot Imap：                                        [失敗]
正在啓動 Dovecot Imap：doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:22: ssl_disable has been renamed to ssl

>>>>

ssl_disable 改成  ssl