[PATCH] test: fix grab mode value tests for new XIGrabModeTouch

[Chase Douglas]

On 12/21/2011 04:02 PM, Peter Hutterer wrote:
> This test checks that last-valid-mode + 1 returns a BadValue. With the
> addition of XIGrabModeTouch, that value has changed - sync it up again.
> 
> Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>

Obvious fix.

Reviewed-by: Chase Douglas <chase.douglas at canonical.com>