pathutil: resurrect comment about path auditing order
It was removed at 51c86c6167c1, but expensive symlink traversal isn't the
only reason we should walk path components from the root.
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true