Make DAGMan be more restrictive in accepting condor_submit output #3658

	condor_dagman would try to match any line containing "cluster" to the
	output "%d job(s) submitted to cluster %d", and fail, even though the
	submit actually succeeded.  Let us be more restrictive on what we
	accept.

	Check that parse of condor_submit output succeeds and that submit
	exit value is zero. Complain if one of these fails and the other
	succeeds. In such a case, if status is zero, we continue on, but
	will not be surprised by failure.

	Add a regression test

	Now the failure mode is actually sane: jobs get removed if the
	submit output is not correct.

	Version history added

	Add test to cmake

	Just point out that we expect the B node to fail here