[docs] [issue29329] Incorrect documentation for custom `hex()` support on Python 2

[Mariatta Wijaya]

Mariatta Wijaya added the comment:

Thanks, Pekka, Eryk, Ammar, and Zachary :)

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status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29329>
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