Raw 468

Name:	ERR_INVALIDUSERNAME
Format:	<source> 468 <target> :info
Info:	This is returned when trying to connect with an invalid username
Example:	irc.quakenet.org 468 Dana :Your username is invalid. irc.quakenet.org 468 Dana :Connect with your real username, in lowercase. irc.quakenet.org 468 Dana :If your mail address were foo@bar.com, your username would be foo.