[Intel-gfx] [PATCH i-g-t] igt/meta_test: Add a warn subtest to make sure warnings are caught as expected.

[Maarten Lankhorst]

Op 20-06-17 om 10:57 schreef Lofstedt, Marta:
> Reviewed-by: Marta Lofstedt <marta.lofstedt at intel.com>

Thanks, applied.