[docs] [issue22830] functools.cmp_to_key: misleading key function description

[Roundup Robot]

Roundup Robot added the comment:

New changeset 63274cf1b40d by Raymond Hettinger in branch '3.4':
Issue 22830:  Clarify docs for functools.cmp_to_key().
https://hg.python.org/cpython/rev/63274cf1b40d

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22830>
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