Re: src/nsterm.m: fix window tabbing on macOS

[martin rudalics]

>> What do s-n and s-w do (which emacs function do they ultimately call)?
>>
>>> Repeat steps 3 and 4 few times, note how the frame height is increased.
>
> s-n (make-frame)
> s-w (delete-frame)

Hmm...  Then "the frame height" refers to the height of different
frames?  Does it always increase by the same amount?  Does it ever stop
to do that?

martin