bug#36263: Fixed in master

[Eli Zaretskii]

> Date: Mon, 17 Jun 2019 20:36:48 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 36263@debbugs.gnu.org
> 
> Actually, I think that assertion has an off-by-one error, it should be
> 
>   eassert (tlen >= file_name_as_directory_slop + 1);
> 
> If I change it this way, the recipe finishes and returns an empty
> string.  Does anyone see a problem with making such a change on
> master?  (I still think that we don't need to make any changes on the
> release branch.)

No comments, so I've now made that change on the master branch, and
I'm closing this bug.