SN-2300 已核对来源，附原文与上下文。
其他参与者原话jgarzik原帖 ↗扩展帮助可能源自我的想法，但代码写得有些不一样。
the extended-help might have been based on my idea, but the code was somewhat different.
想法才是主要的部分。你把补丁发上来时，我意识到本来就该那么做，而非 "-?"。我对 "-?" 一直有顾虑：它侵占了可能的参数取值，而且帮助响应依据的是调用方版本而非服务器版本。
The idea was the main part. When you posted your patch, I realized it should have been done that way instead of "-?". I always had reservations about "-?" because it intrudes on the possible parameter values, and the help response is based on the version of the caller instead of the server.
