[syslinux] please revert MENU CLEAR so to make it optional again

[H. Peter Anvin]

On 11/26/2012 09:28 AM, Ady wrote:
> 
> So after giving those reasons NOT to use MENU CLEAR as new automatic 
> default, I should ask, is there any reason to use this behavior 
> instead of maintaining the behavior used in 4.06 and older?
> 
> Please, revert that commit.
> 

The logic was that we have an effective "MENU CLEAR" default in 4.06 for
vesamenu.c32, but that isn't actually true... we have it only as long as
the user is *not* using "quiet vga=current", which is what a lot of the
distributions like to run with.

So I think you're right, we probably should revert it.

*HOWEVER*, please be aware that that will not actually bring back the
4.06 behavior of clearing the screen implicitly when vesamenu.c32 is in
use and "quiet vga=current" is not used.

	-hpa