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

[Eli Zaretskii]

> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Sun, 28 Jun 2015 00:11:34 +0300
> Cc: 20728-done@debbugs.gnu.org
> 
> And speaking of needs, what is the use case for "--color" without 
> "always"? Instead of special-casing Windows and DOS, why don't we always 
> use `always' for coloring?

Isn't it the other way around: Windows wants 'always' (except when it
doesn't, see below), while others want 'auto'?

As to when you won't want 'always': it's when Grep is invoked as part
pf a pipeline, where it's not the last part, or when the Lisp program
that invokes it wants to interpret the results, as opposed to showing
them to the user.