bug#20728: 25.0.50; grep and grep-find templates should have a place holder for the --color argument

[Eli Zaretskii]

> Cc: 20728@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Thu, 4 Jun 2015 18:36:20 +0300
> 
> On 06/04/2015 06:34 PM, Eli Zaretskii wrote:
> 
> >    (cond
> >      ((eq grep-highlight-matches 'never)
> >        "--color=never")
> >      ((eq grep-highlight-matches 'auto)
> >        "--color=auto"
> >
> > etc., you get the idea.
> 
> And how would the resulting value be used, without a template?

By plugging it directly into the command.