[issue13238] Add shell command helpers to shutil module

[Chris Rebert]

Chris Rebert <pybugs at rebertia.com> added the comment:

Is format() really the best choice here, considering that {}s already have a meaning in the shell?

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nosy: +cvrebert

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13238>
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