xeno-test-run always returned SUCCESS, even if its children exited with
non zero. So xeno-test can not be used programmatically i.e. in CI.
This patch adds some more verbosity and makes xeno-test-run exit FAILURE
if at least one child returned non-zero.
Signed-off-by: Henning Schild <firstname.lastname@example.org>
Signed-off-by: Jan Kiszka <email@example.com>