[KennyMcSimpson]

On a Chinese-language Windows, test_strict_soft_sentinel_inspection_failure_closes_descriptor failed because it matched the English text of the closed-descriptor error, and Windows reports that text in the system language ([WinError 6] 句柄无效。). The lock had closed the descriptor as intended; only the assertion depended on the locale. Contributors on a non-English Windows can now run the suite without a spurious failure.

The test now checks errno == EBADF through the check= predicate of pytest.raises, the same shape the suite already uses for the symlink refusal errnos. The errno is the same on every platform, while the message is not. The remaining message matches in the suite target Python-generated or C-runtime text, which stays English regardless of the system language.