Raw 401

Name:	ERR_NOSUCHNICK
Format:	<source> 401 <target> <nick> :No such nick <source> 401 <target> <nick> :Target left <network>. Failed to deliver: [<first_20_chars_of_message>]
Info:	This is returned when a nick does not exist or leaves the network before the message is delivered
Example:	irc.quakenet.org 401 Dana Q :No such nick irc.quakenet.org 401 Dana * :Target left QuakeNet. Failed to deliver: [cows go moo!]