bug#51040: No curved quotes in format-prompt and minibuffer-default-prompt-format

[Stefan Kangas]

Eli Zaretskii <eliz@gnu.org> writes:

> Ouch! what a mess do we have with this stuff!
>
>   . the doc string of text-quoting-style the function doesn't document
>     its return values, but refers to the variable, so it's easy to
>     conclude that it also returns nil
>   . that doc string says "effective style", without explaining the
>     special processing of nil
>   . the function is not in the ELisp manual, but the variable is,
>     twice(!)

Yeah, it's a mess.  I suggest we address the documentation issues on
emacs-28 with the attached patch.

I compared the duplicate text, and the only thing that was different is
that the word "variable" had been changed into "option".  So I deleted
the one in the wrong section and that incorrectly said "variable".

0001-Doc-fixes-for-text-quoting-style.patch
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