bug#22627: 25.1.50; Wishlist: It would be nice if the grep buffer had a history

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Thu, 11 Feb 2016 16:52:14 +1100
> 
> `g' works fine for redoing, but it would be great if you could return to
> the previous (and next) with the normal `r'/`n' commands.

We could have an optional feature whereby the Grep buffer is named
something like "*grep-the-command-line-used*".  Then as long as the
next Grep command is different, you will have a new buffer for its
output, and Bob's your uncle.