[PATCH evdev] Fix inverted horizontal scroll (#46205)

[Chase Douglas]

On 03/14/2012 10:56 PM, Peter Hutterer wrote:
> REL_HWHEEL has a positive increment, not a negative one like REL_WHEEL.
> 
> X.Org Bug 46205 <http://bugs.freedesktop.org/show_bug.cgi?id=46205>
> 
> Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>

I have seen this bug too, but haven't had a chance to fix it. This looks
correct.

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