Usage: `/AWAY [message]'
When used with the optional [message] argument, it will mark you as being away and send the message to any client sending a MSG to you. Otherwise, it will remove a previously set away message.
Related: BACK
Examples:
`/AWAY eating dinner'
Will send the message '<NICK> IS AWAY: EATING DINNER', where nick
is the nickname of the user that is away.
`/AWAY'
Will remove a previously set Away Message.