bug#29801: 25.3; ispell cannot detect installed dictionaries

[Eli Zaretskii]

> From: Basilio <basilio@gmx.com>
> Cc: 29801@debbugs.gnu.org
> Date: Thu, 21 Dec 2017 21:35:11 +0200
> 
> > Finally, what is the Aspell version?  What does "aspell -vv" produce?
> ~ % aspell -vv                         
> @(#) International Ispell Version 3.1.20 (but really Aspell 0.60.7-rc1)

That's the problem, I think: that "-rc1" at the end of the version
string.  Emacs looks for a version string with this regexp:

 (search-forward-regexp "(but really Aspell \\([0-9]+\\.[0-9\\.-]+\\)?)" nil t)

which doesn't match 0.60.7-rc1.