tests: assume that `raw` attribute is present on original socket file object
It seems like the original socket file object is always an io.BufferedIO
instance. If not, the code will fail and we should try harder to get the socket
object (e.g. if the original socket file object is unbuffered, we can get the
`_sock` attribute directly from it).
# Files that just need to be migrated to the formatter.
# Do not add new files here!
mercurial/cext/manifest.c
mercurial/cext/osutil.c
# Vendored code that we should never format:
syntax: glob
contrib/python-zstandard/**.c
contrib/python-zstandard/**.h
hgext/fsmonitor/pywatchman/**.c
mercurial/thirdparty/**.c
mercurial/thirdparty/**.h
mercurial/pythoncapi_compat.h