"ResetEvent" test seems to have a too short timeout: the test is failing randomly on OpenBSD

raise the timeout to 100ms to be sure that if it fails (timeout is returned) it is due to a real problem.
the test shouldn't be longer: it will wait more time only on failure.
678bd4fc89Sébastien Marie committed on 11/10/2020, 5:29:53 AMparent9d306e5
1 file changedLine totals unavailable