[issue41056] minor NULL pointer and sign issues reported by Coverity

[miss-islington]

miss-islington <mariatta.wijaya+miss-islington at gmail.com> added the comment:


New changeset 81328f30703bd7225e7e73aedb0994a7293ce190 by Gregory P. Smith in branch 'master':
bpo-41056: Fix reference to deallocated stack in pathconfig (Coverity) (GH-21013)
https://github.com/python/cpython/commit/81328f30703bd7225e7e73aedb0994a7293ce190


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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41056>
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