bug#68583: 29.1; Can't find the cat manpage

[Eli Zaretskii]

> Date: Fri, 19 Jan 2024 12:46:57 +0000
> Cc: manuel@ledu-giraud.fr, 68583@debbugs.gnu.org
> From: Christopher Yeleighton <giecrilj@stegny.2a.pl>
> 
> If the code in man.el tried to find the manual page by itself, it would 
> not fail because the manual page is there. It succeeds if MANOPT is not 
> set and my MANOPT should not affect the manual page search algorithm.

That depends on how we try to find the manual page(s).  The
implementation calls 'man' in a special way, which evidently fails
under the value of MANOPT you set.