[issue21397] tempfile.py: Fix grammar in docstring, comment typos

[Roundup Robot]

Roundup Robot added the comment:

New changeset adac8ba7b1b1 by Yury Selivanov in branch '2.7':
tempfile: Fix docstring. Issue #21397, patch by R. David Murray.
https://hg.python.org/cpython/rev/adac8ba7b1b1

New changeset 500d3d6f22ff by Yury Selivanov in branch '3.4':
tempfile: Fix docstring. Issue #21397, patch by R. David Murray.
https://hg.python.org/cpython/rev/500d3d6f22ff

New changeset db17f57c32af by Yury Selivanov in branch 'default':
tempfile: Fix docstring. Issue #21397, patch by R. David Murray.
https://hg.python.org/cpython/rev/db17f57c32af

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nosy: +python-dev

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<http://bugs.python.org/issue21397>
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