wcmd: some features/bug fixes

[Mike McCormack]

Anoni Moose wrote:

>     * programs/wcmd/builtins.c, programs/wcmd/wcmdmain.c,
>       programs/wcmd/wcmd.h:
>     wcmd: Clear terminal screen using escape code.
>           -Fix infinite file-read loop with TYPE command.
>           -TITLE command use terminal escape code.
>           -Added FREEDISK command.   

Please send one patch per email.  The patch should be standalone.

+     /* Clear the _terminal_ screen by giving the correct terminal 
escape code. */
+     printf("%cc", 0x1B);

You can't assume that you'll be using any sort of terminal here.  If the 
backend is wineconsole or a non-xterm/vt100 terminal, then this won't 
work.  You have to use the Win32 API.

Mike