bug#54804: 29.0.50; zap-to-char: case sensitive for upper-case letter

[Tino Calancha]

On Wed, 11 May 2022, Andreas Schwab wrote:

> > "available, e.g. while compiling the Emac source code, this gives the
> > correct answer only..."
>
> I don't think there is a need for this at all in the manual.  It could
> be added as a comment in the source, though.

I have removed completely that sentence and pushed
to the master branch.

Thank you Andreas.