[issue13948] rm needless use of set function

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

Done as part of my general test_version cleanup.

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resolution:  -> duplicate
stage:  -> committed/rejected
status: open -> closed
superseder:  -> Get rid of doctests in packaging.tests.test_version

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13948>
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