[PATCH xserver] glx: Fix typos that break GLX_ARB_context_flush_control

[Emil Velikov]

On 6 November 2017 at 21:07, Adam Jackson <ajax at redhat.com> wrote:
> The trailing \n are just wrong here, __glXEnableExtension wants a string
> without them.
>
> Signed-off-by: Adam Jackson <ajax at redhat.com>
Reviewed-by: Emil Velikov <emil.velikov at collabora.com>

Related: we want to drop the ifdef __DRI2_FLUSH_CONTROL, adding a
fallback define for the symbol.
-Emil