[issue34594] Some tests use hardcoded errno values

[Zackery Spytz]

New submission from Zackery Spytz <zspytz at gmail.com>:

test_spwd.py and test_tabnanny.py use hardcoded errno values when they test some exception messages.

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components: Tests
messages: 324662
nosy: ZackerySpytz
priority: normal
severity: normal
status: open
title: Some tests use hardcoded errno values
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34594>
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