usage: chkey [<channel>] -|<new key>

    /chkey changes the <channel> or current channel key to <new key> if it
    is specified.  If - is specified, the key is removed.
    examples:
      /chkey boobs
    changes the current channel's key to "boobs"
      /chkey -
    clears the current channel's key
      /chkey #ninja w3rd
    changes the "#ninja" key to "w3rd"

see also help on:
    limit
    mode
