[PATCH 08 of 10] chg: implement validate in hgclient

[timeless]

Jun Wu <quark at fb.com> wrote:
> How about changing to this:
>  *           sent instructions telling us how to fix the issue. See

I'm not a huge fan of `how to fix the issue`, otherwise it's great.

> /* the server returns '\0' if it can handle our request */

sure