Omit spurious string from unit test debugging efforts
When both 'broken' and 'failed' test cases appear in unit test output
... ===> Broken tests lib/isc/tests/socket_test:main -> broken: Test case timed out [300.022s] ===> Failed tests lib/isc/tests/time_test:main -> failed: 2 of 6 tests failed [0.006s] ===> Summary ...
spurious '===>' string gets matched, that results in the following error:
Usage error for command debug: '===>' is not a test case identifier (missing ':'?).
Following change makes sure the string is omitted.
I checked on FreeBSD and OpenBSD that the AWK construct is supported.