Adjust video.c init so that -dumb does not pop up an X window.
Make -dumb quiet until the command is executed if a command is given. So
dosemu -dumb dir
gives a directory listing and nothing else.


git-svn-id: https://dosemu.svn.sourceforge.net/svnroot/dosemu/trunk@1391 7758b857-130e-0410-ab9c-d8735a528d18