Fix sporadic failure in test_startfile.
Fix potential resource leak in test_mmap.
Issue #12050: zlib.decompressobj().decompress()...
Issue #10883: Fix socket leaks in urllib.request.
Fix typo in NEWS entry for dbf1e1a27427.
Fix typo in dbf1e1a27427 that was causing some ...
Fix resource leaks in test_subprocess.
Issue #12678: Fix distutils sdist test on Windows.