Subject: RE: bug#22457: 24.5; [PATCH] `dired-mark-if' should not count non-changes

From: Drew Adams <[email-masked]>
Date: Tue, 25 Jun 2019 17:00:47 -0700 (PDT)

> > It works as coded, however, because Emacs regexp matching treats a
> > special char such as `*' as non-special in such a context.
> 
> Oh, indeed.  But not for `.' I think.

Right again.  (And yes, one can use `.' as a marker char.)