Re: Documentation of tab-bar-show and friends

[Juri Linkov]

> Got it, thanks.

BTW, this change in c5bdb287e8 is not quite right:

    On graphical displays and on text terminals, Emacs can optionally
  display a @dfn{Tab Bar} at the top of each frame, just below the menu
  bar (@pxref{Menu Bars}) and above the tool bar (@pxref{Tool Bars}).

The tab bar can't be above the tool bar when the tool bar is external.
On non-external builds, its position depends on this variable:

  tab-bar-position is a variable defined in ‘src/dispnew.c’.
  Specify on which side from the tool bar the tab bar shall be.
  Possible values are ‘t’ (below the tool bar), ‘nil’ (above the tool bar).
  This option affects only builds where the tool bar is not external.

Also

  @item C-x t @key{RET} @var{tabname} @key{RET}
  Switch to the tab by its name (@code{tab-switch}), with completion on
  all tab names.  History of used tab names is sorted by recency, so you
  can use @kbd{M-n} (@code{next-history-element})

Maybe then: "Future history of used tab names", because 'M-n' navigates
through the "future history".

Regarding this change:

  @kindex C-9, tab bar
  @kindex M-9, tab bar

I'm not sure if there is a need to say that <Mod>-9 is bound to 'tab-last'.