bug#59122: 29.0.50; global-text-scale-adjust not working

[Eli Zaretskii]

> Date: Tue, 08 Nov 2022 13:28:46 +0100
> From:  Rudolf Adamkovič via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
>   1. emacs -Q
>   2. type M-x global-text-scale-adjust RET
>   4. type -
> 
> Expected:
> 
>   font size decreases
> 
> Actual:
> 
>   nothing happens

I cannot reproduce this, it works as expected for me.  But I'm not on
macOS.