class Thor::Group

def class_options_help(shell, groups={}) #:nodoc:

:nodoc:

shown recursively when invoking a generator.
Overwrite class options help to allow invoked generators options to be 
def class_options_help(shell, groups={}) #:nodoc:
  get_options_from_invocations(groups, class_options) do |klass|
    klass.send(:get_options_from_invocations, groups, class_options)
  end
  super(shell, groups)
end