[issue14468] Update cloning guidelines in devguide

[Ezio Melotti]

Ezio Melotti added the comment:

I created #17570 about the Windows-related improvements, so this can finally be closed.

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resolution:  -> fixed
stage: commit review -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14468>
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