pidns16: modified test results

The test should result TFAIL if child is signalled from unexpected pid,
instead of TBROK. The same as TPASS/TINFO .

Signed-off-by: Monson Shao <jshao@redhat.com>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
1 file changed