[PATCH v1] Emacs related NEWS for 0.22.

[Mark Walters]

> +Queries matching no messages no longer generate empty buffers
> +
> +  Should an attempt be made to view the thread corresponding to a
> +  query that matches no messages, a warning message is now displayed
> +  and the terminal bell rung rather than displaying an empty buffer
> +  (or, in some cases, an empty buffer and an error).

Perhaps it would be saying that this is only for show view, as I
initially read it as applying to search view (which is probably a rather
more common case via "s").

Best wishes

Mark