[issue30769] [EASY (C)] test_execve_invalid_env() of test_os leaks references

[Emily Morehouse]

Emily Morehouse added the comment:

I think I need a bit more direction for the 3.5 backport. The original test below passes:
    ./python -m test -R 3:3 -m test_execve_invalid_env test_os

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<http://bugs.python.org/issue30769>
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