bug#55708: (key-description (kbd "C-F")) becomes "C-f"

[Eli Zaretskii]

> Date: Sun, 29 May 2022 14:34:00 +0000
> From: meedstrom--- via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> In Emacs 29, running emacs -Q, we get inconsistent results:
> 
> (key-description (kbd "M-F")) returns "M-F"
> (key-description (kbd "H-F")) returns "H-F"
> (key-description (kbd "A-F")) returns "A-F"
> 
> but
> 
> (key-description (kbd "C-F")) returns "C-f"
> 
> I would have expected to see either "C-F" or "C-S-f". 
> 
> It's probably not related to `translate-upper-case-key-bindings' is nil, it's 
> the same result either way.

I think it's because C-f is a character, unlike M-f and H-f.