[docs] [issue23105] os.O_SHLOCK and os.O_EXLOCK are not available on Linux

[Berker Peksag]

Changes by Berker Peksag <berker.peksag at gmail.com>:


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keywords: +easy
stage:  -> needs patch
versions: +Python 3.6 -Python 3.4

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<http://bugs.python.org/issue23105>
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