When we use PC-Card as install media, it is a patch
to tell with beep about whether we were able to
recognize it well.
Reviewed by: jkh, imp
Tested by: Kenji Yamada <kyamada@ISI.EDU>
as redoing all the menus to have proper, or at least non-hallucinogenic,
keyboard accelerators.
This requires my recent update to libdialog to work properly and will
probably also exhibit some other "interesting" behavior while the last
few missing screen clears are found (which is why I'm not going to MFC
immediately). At least now, however, sysinstall does not gratuitously
redraw random screens at the drop of a hat and drive serial console
installers out of their minds.
