bug#28182: maybe implement CTRL++ to zoom text

[Lars Ingebrigtsen]

Richard Stallman <rms@gnu.org> writes:

>   > Please tell what is your problem, and why "C-x C-+" doesn't solve it?
>
> Does C-x C-+ increase the font size?  I didn't know that.  I thought of
> trying C-+ because that is what other graphical applications use.

It's a bit unusual, but it was presumably chosen because `C--' was
already taken, so the natural pair became `C-x C--' and `C-x C-+'.

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