bug#64632: Feature request: downcase-char, downcase-initials

[Eli Zaretskii]

> From: José Júnior <jjnilton@gmail.com>
> Date: Fri, 14 Jul 2023 20:31:42 -0300
> 
> Hi, my suggestion is to add equivalent functions for `upcase-char` and 
> `upcase-initials` but for
> downcase (`downcase-char` and `downcase-initials`). When I first these 
> functions, I expected to have
> the downcase equivalent for each of them.

Thanks.

In which situations would such commands be useful?  We don't introduce
commands just because they are equivalents of others.

Anyway, we already have downcase-region, which you could use to
downcase any range of characters, including a single character
anywhere in a word.