bug#46178: 28.0.50; auto-resize-tool-bars / auto-resize-tab-bars grow-only

[Eli Zaretskii]

> Cc: 46178@debbugs.gnu.org
> From: martin rudalics <rudalics@gmx.at>
> Date: Sat, 30 Jan 2021 11:18:09 +0100
> 
>  >> So we'd have to mention in the docs of this option that one can regain
>  >> these lines only by setting 'recenter-redisplay' to anything but the
>  >> default.
>  >
>  > The doc string already says that.
> 
> That of 'recenter' does.  But since these options do not work out of the
> box (a user has to customize the option 'recenter-redisplay' too), it
> would be useful if the docs of 'auto-resize-tool-bars' and
> 'auto-resize-tab-bars' told so.  At the moment they just tell me to use
> M-x recenter or C-l.

OK, I fixed that.

> Also, the doc string of 'recenter' does not mention the tab bar and
> its Elisp manual entry mentions neither the tab nor the tool bar.

Not sure why that is a problem.  We don't have to have everything
mentioned in every possible place.

>  >> Better IMHO would be to abolish the never used and completely
>  >> useless 'grow-only' value for these options.
>  >
>  > That's a separate issue.
> 
> We could stop mentioning 'grow-only' in the doc-strings and manuals and
> leave it in as an undocumented feature.

You know me: I'm uneasy about downgrading features just because they
are awkward or inconvenient to document.