dc_assert_abort inferred the outcome from the status row. The assertion should
prove the service rejected its input, so it now reads the child's response and
requires a sasjsAbort object, and compares that object's MSG value with the
message the service is expected to return:
%mpe_assert_abort(desc=An invalid libds aborts the service,
outref=web1, msg=Invalid libds)
Renamed with the mpe_ prefix to match the other macro-level helpers. getdata
Test 4 asserted completion with the abort macro, which was the wrong tool; it
now checks the status row for state=completed directly.