[docs] [issue18245] In itertools.groupby() make data plural

[py.user]

New submission from py.user:

http://en.wiktionary.org/wiki/data
"data (uncountable) or plural noun"

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assignee: docs at python
components: Documentation
files: issue.diff
keywords: patch
messages: 191354
nosy: docs at python, py.user
priority: normal
severity: normal
status: open
title: In itertools.groupby() make data plural
versions: Python 3.3, Python 3.4
Added file: http://bugs.python.org/file30624/issue.diff

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<http://bugs.python.org/issue18245>
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