bug#52202: 29.0.50; try-completion, all-completions support for a list of strings COLLECTION is not documented in their docstrings

[Eli Zaretskii]

> From: Matt Armstrong <matt@rfc20.org>
> Cc: 52202@debbugs.gnu.org
> Date: Tue, 30 Nov 2021 12:39:45 -0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Matt Armstrong <matt@rfc20.org>
> >> Date: Tue, 30 Nov 2021 11:18:05 -0800
> >> 
> >> Attached is a docstring patch against the emacs-28 branch for this
> >> issue.
> >
> > Thanks, but ... all these changes just to say that a list of strings
> > can also be a COLLECTION?  This looks like a complete rewrite, and
> > comparing it with the existing doc string is a lot of work.  Is the
> > current doc string really that awful and requires such a complete
> > rewrite?  Why can't we get away with a smaller, simpler change (that
> > would be easier to review and approve)?
> 
> Thanks Eli, I can sympathize with respect to the review difficulty, but
> I couldn't find a simple edit that did a good job.  It is more than just
> "list of strings", but I did not realize when I filed the bug.  This
> became clear only after I started reading code and trying to document
> the current behavior.

Can you list the aspects which the current doc string doesn't
describe, or describes inaccurately or incorrectly?

Thanks.