[Mesa-stable] Pick c3ee464d7aa170225b5ec23b53a7f8d07663d428

[Emil Velikov]

On 6 December 2017 at 21:12, Fabian Bieler <fabianbieler at fastmail.fm> wrote:
> commit c3ee464d7aa170225b5ec23b53a7f8d07663d428
> Author: Fabian Bieler <fabianbieler at fastmail.fm>
> Date:   Thu Nov 23 13:48:00 2017 -0700
>
> glsl: Fix gl_NormalScale.
>
Thank Fabian. Picked this and the gl_LightSourceParameters fix for 17.2.7.

-Emil