logilab-devtools #5037 threading coverage is broken [resolved]

=========================  test_coverage.py  =========================
.......................................................F
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FAIL: testThreading (test_coverage.ThreadingTests)
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Traceback (most recent call last):
  File "/home/pyves/src/logilab/common/testlib.py", line 1059, in _proceed
    testfunc(*args, **kwargs)
  File "test_coverage.py", line 1325, in testThreading
  File "test_coverage.py", line 181, in checkCoverage
AssertionError: '7, 10' != '10'

                              no stdout
                              no stderr
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Ran 56 tests in 1.483s

FAILED (failures=1)