Changes the 'ircname' line returned when someone performs a /whois on you.  You must specify this *before* connecting to the network. If you omit <description>, the current description is shown.
更改当有人对您执行 /whois 时返回的 "ircname" 行。您必须在连接到网络 >之前< 指定此项。如果省略 <description>，则显示当前描述。