def task_help(name)
      load_tasks

      klass, task  = find_by_namespace(name)

      # set '$thor_runner' to true to display full namespace
      $thor_runner = true

      klass.task_help(shell , task)
    end
def task_help(name)
      load_tasks

      klass, task  = find_by_namespace(name)

      # set '$thor_runner' to true to display full namespace
      $thor_runner = true

      klass.task_help(shell , task)
    end
display help for the given task