For CommandOptions, but defined external to it, so that it is easy to access from user defined commands. (This lookup issue should be fixed in Ruby 1.9+, and then the class can be moved back into Command namespace.)

Methods
new
Public Class methods
new(name, *arg)

[ + ]

# File lib/more/facets/command.rb, line 74
    def initialize(name, *arg)
      super("unknown option -- #{name}", name, *args)
    end