test_passes_child_pid_to_block fails

[paulvt]

When building a Debian package of the new upstream version (1.3.0), I enabled the test suite. However, the test 'test_passes_child_pid_to_block' seems to fail:

# Running tests:

...............F....

Finished tests in 0.209712s, 95.3689 tests/s, 181.2009 assertions/s.

  1) Failure:
  test_passes_child_pid_to_block(Open4::POpen4Test) [./test/popen4ext_test.rb:38]:
  Expected: 17870
  Actual: 17869