bug#71081: 30.0.50; shell-command-on-region outputs boilerplate text on Windows

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: dmitry@gutov.dev, 71081@debbugs.gnu.org, matt@excalamus.com
> Date: Thu, 23 May 2024 14:36:22 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> more over, on Linux, different shells have different behaviors wrt
> >> input/command argument/script file).
> >
> > Same on Windows.  Try PowerShell some day.  Does it mean we need to
> > document all of that in our documentation?
> 
> It would be nice, yes. Without details - just point that there is a
> difference. Maybe in the "41.3 Creating a Synchronous Process" section
> of the manual.

Done, and closing the bug.