[PATCH] render: Allow single-stop gradients

[Soeren Sandmann]

Andrea Canciani <ranma42 at gmail.com> writes:

> The Render specification allows single-stop gradients and pixman 0.22
> (which the X server depends on) can rasterize them correctly.
>
> Signed-off-by: Andrea Canciani <ranma42 at gmail.com>

Reviewed-by: Soren Sandmann <ssp at redhat.com>