[issue20868] Lib/test/test_socket.py: skip testGetServBy if /etc/services is not found

[STINNER Victor]

STINNER Victor added the comment:

I don't understand why /etc/services would miss. What is the current behaviour? What is the error message?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20868>
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