The change to use fixed-width fonts for menus wasn't working
optimally because the font got changed after menu construction
had measured the necessary width and height amounts. ^X output,
which uses a menu instead of a text window for tty's benefit
(probably curses too; I don't remember), had a couple of lines
which were wrapping unnecessarily.
This fix avoids that, but the extra '+20' shouldn't be needed.
Unfortunately lines in menus are effectively double-spaced, which
looks bad, and I've no idea how to fix that.
08249963b2