[docs] [issue12042] What's New multiprocessing example error

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

I’m not sure historical whatsnew documents get fixes.  As long as the PEPs and docs get fixes, the whatsnew can stay as they are.

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nosy: +eric.araujo

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<http://bugs.python.org/issue12042>
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