testSocket (tests.fd_remote.RemoteFDTests) fails on Darwin

[fmoo]

Looks like the mode bits aren't set correctly on sockinfo.psi.soi_stat ?

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FAIL: testSocket (tests.fd_remote.RemoteFDTests)
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Traceback (most recent call last):
  File "/Users/ruibalp/src/python-filedes/tests/fd_remote.py", line 21, in testSocket
    self.checkSubprocessFDs([FD(s.fileno())])
  File "/Users/ruibalp/src/python-filedes/tests/fd_remote.py", line 70, in checkSubprocessFDs
    self.assertEquals(FD(int(fd), p.pid).mode, fd.mode)
AssertionError: 0 != 49590

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