lib: Reset errno to 0 after isatty

Since igt_assert family of functions logs last errno we get a lot of
those: "Last errno: 25, Inappropriate ioctl for device"

isatty() seems to be the biggest offender in that area, so this patch
should limit amount of confusing messages significantly.

Cc: Martin Peres <martin.peres@linux.intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>

0 files changed, 0 insertions, 0 deletions