[docs] [issue19180] some RFC references could be updated

[Nick Coghlan]

Nick Coghlan added the comment:

And merged. Thanks Chandan for the update, and everyone else for the comments and triage :)

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resolution:  -> fixed
stage: backport needed -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19180>
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