'.stress-<nr>' suffix, and the trash directory of the failed
test job is renamed to end with a '.stress-failed' suffix.
+--stress-limit=<N>::
+ When combined with --stress run the test script repeatedly
+ this many times in each of the parallel jobs or until one of
+ them fails, whichever comes first.
+
You can also set the GIT_TEST_INSTALLED environment variable to
the bindir of an existing git installation to test that installation.
You still need to have built this git sandbox, from which various