! Copyright (c) 1990-1997  Michael Sandrof, Troy Rollo, Matthew Green,
! Timothy Jensen, and other ircII contributors.
!
! All rights reserved.  See the HELP IRCII COPYRIGHT file for more
! information.
!
Usage: MUB [<channel>] [<user@host>]
  Mass unbans all channel bans matching the user@host mask. If no
  mask is given, *@* is used instead.

See Also:
  UNBAN
  MODE
