bug#65762: [PATCH] ; Fix error in 'tex-recenter-output-buffer'

[Eli Zaretskii]

> Date: Tue, 05 Sep 2023 19:12:41 +0200
> From:  Eshel Yaron via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> This fixes an issue in `tex-recenter-output-buffer` (which affect
> several other commands that rely on it) where it calls `display-buffer`
> and tries to select the returned window, without checking that
> `display-buffer` returned non-nil.  This leads to an error when
> `display-tex-shell-buffer-action` or `display-buffer-alist` are
> configured to prevent the display of the *tex-shell* buffer.

Thanks.  Tassilo, any comments?