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Features
- Expose a `PRE_COMMIT=1` environment variable when running hooks
- 1467 PR by tech-chad.
- 1426 issue by lorenzwalthert.
Fixes
- Fix `UnicodeDecodeError` on windows when using the `py` launcher to detect
executables with non-ascii characters in the path
- 1474 PR by asottile.
- 1472 issue by DrFobos.
- Fix `DeprecationWarning` on python3.9 for `random.shuffle` method
- 1480 PR by asottile.
- 1479 issue by isidentical.
- Normalize slashes earlier such that global `files` / `exclude` use forward
slashes on windows as well.
- 1494 PR by asottile.
- 1476 issue by harrybiddle.