black: also ignore grey.py

Differential Revision: https://phab.mercurial-scm.org/D7090

black.toml

@@ -1,16 +1,17 b''
 [tool.black]
 line-length = 80
 exclude = '''
 build/
 | wheelhouse/
 | dist/
 | packages/
 | \.hg/
 | \.mypy_cache/
 | \.venv/
 | mercurial/thirdparty/
 | hgext/fsmonitor/pywatchman/
 | contrib/python-zstandard/
+| contrib/grey.py
 '''
 skip-string-normalization = true
 quiet = true

contrib/examples/fix.hgrc

@@ -1,15 +1,15 b''
 [fix]
 clang-format:command = clang-format --style file -i
 clang-format:pattern = (**.c or **.cc or **.h) and not "listfile:contrib/clang-format-ignorelist"
 
 rustfmt:command = rustfmt {rootpath}
 rustfmt:pattern = set:**.rs
 
 # We use black, but currently with
 # https://github.com/psf/black/pull/826 applied. For now
 # contrib/grey.py is our fork of black. You need to pip install
 # git+https://github.com/python/black/@d9e71a75ccfefa3d9156a64c03313a0d4ad981e5
 # to have the dependencies for grey.
 #
 # black:command = python3.7 contrib/grey.py --config=black.toml -
-# black:pattern = set:**.py - hgext/fsmonitor/pywatchman/** - mercurial/thirdparty/** - "contrib/python-zstandard/**"
+# black:pattern = set:**.py - hgext/fsmonitor/pywatchman/** - mercurial/thirdparty/** - "contrib/python-zstandard/** - contrib/grey.py"