bug#66390: `man' allows to inject arbitrary shell code

[Max Nikulin]

On 07/10/2023 20:04, Eli Zaretskii wrote:
> > From: Maxim Nikulin
> > Date: Sat, 7 Oct 2023 19:47:04 +0700
>
> > man.el should prevent substitution of shell specials literally from
> > `man' arguments into shell commands.
>
> I think callers of 'man' should prevent that instead.

If it is fixed in man.el then it is fixed for all callers. Otherwise 
every caller must have notion of structure of references to man pages 
instead of just treating them as opaque sequence of characters.