[docs] [issue15148] shutil.which() docstring could be clearer

[Tshepang Lekhonkhobe]

Changes by Tshepang Lekhonkhobe <tshepang at gmail.com>:


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title: shutul.which() docstring could be clearer -> shutil.which() docstring could be clearer

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15148>
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