bug#70832: 30.0.50; repunctuate-sentences should respect sentence-end-double-space

[Eli Zaretskii <eliz@gnu.org>]

> From: Juri Linkov <juri@linkov.net>
> Cc: Geoffrey Teale <tealeg@gmail.com>,  70832@debbugs.gnu.org
> Date: Sun, 12 May 2024 09:58:05 +0300
> 
> >> In paragraphs.el there is a variable  'sentence-end-doulbe-space` that indicates where we should expect
> >> sentences to end with one or two spaces after a period. In the same file a command is provided called
> >> "repunctuate-sentences", which steadfastly ignores the value of this variable and expands all single-space
> >> endings to two-space endings.
> >>
> >> It strikes me that the naming of this command does not imply that it will insist on two-spaces (even if the docs
> >> say so), and it would be more sensible and offer more utility for it to respect the users wishes.  As the variable
> >> default to `t, changing this function would have zero impact on the default behaviour.
> >
> > Patches to allow repunctuate-sentences heed the value of
> > sentence-end-double-space are welcome.
> 
> The purpose of repunctuate-sentences is
> to put two spaces at the end of sentences.
> What should it do when sentence-end-double-space is nil?

Leave just one space between sentences, I think.