kunit: tool: fixed test broken by system.exit(1)

4691404d5f6b86c05061961ccbb3603980559c4e ("kunit.py : Exit with exit
code of 1 when all tests do not pass.",
https://kunit.googlesource.com/linux/+/4691404d5f6b86c05061961ccbb3603980559c4e)
broke kunit_tool unit tests by making kunit_tool do a system.exit(1) on
a failure.

Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Change-Id: I87ed68609f485e592cd2e5584baf4f5ad879a968
1 file changed