bug#38684: 26.3; toggle menu bar twice may change frame height

[martin rudalics]

> Descriptions in info (elisp)Implied Frame Resizing and
> in help C-h v frame-inhibit-implied-resize slightly differ.
>
> first paragraph
> info: If this option is non-‘nil’, no implied resizing is done.
> help: If this option is t, no such resizing is done.
>
> second paragraph
> info: The value of this option can be also a list
> help: The value of this option can be also be a list

These should be hopefully fixed now.  Many thanks for reading them
carefully.

Note also that in

>>> If the frame is narrow enough to display the menu bar for current buffer
>>> in two lines and wide enough to display the menu bar for minibuffer in
>>> one line, toggling menu bar using minibuffer(M-x menu-bar-mode) twice
>>> enlarges the frame height.

the term "twice" (or merely its position in the text) is misleading.
But, in fact, the bug already appears when you toggle the menu bar off
- the frame should correctly shrink in that case.

Thanks again, martin