'__details__() should print docstr for old style task methods with default args'

def test_old_style_task_with_default_args(self):

    def task_old_style(arg1, arg2, arg3=None, arg4='yes'):
        'Docstring'
    details = get_task_details(task_old_style)
    eq_("Docstring\nArguments:    arg1,    arg2,    arg3=None,    arg4='yes'", details)
