class Thor::Runner

def help(meth = nil)
  if meth && !self.respond_to?(meth)
    initialize_thorfiles(meth)
    klass, command = Thor::Util.find_class_and_command_by_namespace(meth)
    self.class.handle_no_command_error(command, false) if klass.nil?
    klass.start(["-h", command].compact, :shell => shell)
  else
    super
  end
end