bug#3643: emacs -Q doesn't fit on the user's screen

[jidanni]

JD> I made some changes.  If 40 doesn't fit we try 24.  If that doesn't
JD> fit we just use 10.
Well, you had better also glue it to the top left of the screen, or else
your latest attempt ends up like...

emacs-snapshot20100125.jpg
Description: emacs -Q minibuffer hidden

Or maybe you should just stick emacs in the middle of the screen, as who
knows where the users toolbar are (since apparently "we can't see them
in the dark").

Please also try
$ emacs -Q& emacs -Q& emacs -Q& emacs -Q&
Notice how the first and third have the minibuffer etc. end up
underneath the toolbar at the bottom of the screen. Only the second and
fourth are correctly fully on the screen.