tests: quote $PYTHON in test-byteify-strings.t
This is needed because the default install location is "Program Files" on
Windows.
Differential Revision: https://phab.mercurial-scm.org/D7251
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
| contrib/python-zstandard/
'''
skip-string-normalization = true
quiet = true