[issue17917] use PyModule_AddIntMacro() instead of PyModule_AddIntConstant() when applicable

[Charles-François Natali]

Changes by Charles-François Natali <cf.natali at gmail.com>:


Added file: http://bugs.python.org/file30155/ins_macro.diff

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17917>
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