fsmonitor: remove pywatchman from exclusion rule
The recently vendored pywatchman code base is now formatted
with black. We can now remove pywatchman from our black
exclusion rule.
Differential Revision: https://phab.mercurial-scm.org/D7202
[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
black:command = black --config=black.toml -
black:pattern = set:**.py - mercurial/thirdparty/** - "contrib/python-zstandard/**"