bug#36595: 27.0.50; read-file-name fails with a long prompt or directory

[Eli Zaretskii]

> Date: Thu, 11 Jul 2019 18:57:30 +0900
> From: Kazuhiro Ito <kzhr@d1.dion.ne.jp>
> 
> 1. start emacs -Q
> 2. eval below code.
> (progn
>   (setq resize-mini-windows nil)
>   (read-file-name
>    (make-string (frame-width) ?Z)))
> 3. Hit TAB twice.
> 
> Minibuffer shows message such as "[Args out og range: 82, 82]" and
> completion list never appears.

Thanks, should be fixed now.