lib: Print subtest starting/ending line to stderr too

when instructed via the environment. This is needed for the new test
runner to properly assign stderr output to the correct subtest.

v2:
 Print the subtest result from skip_subtests_henceforth handling also
 to stderr.

Signed-off-by: Petri Latvala <petri.latvala@intel.com>
Reviewed-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>

0 files changed, 0 insertions, 0 deletions