[issue20361] -W command line options and PYTHONWARNINGS environmental variable should not override -b / -bb command line options

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis <Arfrever.FTA at GMail.Com>:


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dependencies: +BytesWarnings triggerred by test suite

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20361>
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