py3: exclude pywatchman from test-check-py3-compat.t

Exclude pywatchman from py3 test. They have already worked on Python 3
compatibility https://github.com/facebook/watchman/pull/247

tests/test-check-py3-compat.t

@@ -1,46 +1,42 b''
 #require test-repo
 
   $ . "$TESTDIR/helpers-testrepo.sh"
   $ cd "$TESTDIR"/..
 
   $ hg files 'set:(**.py)' | sed 's|\\|/|g' | xargs python contrib/check-py3-compat.py
   contrib/python-zstandard/setup.py not using absolute_import
   contrib/python-zstandard/setup_zstd.py not using absolute_import
   contrib/python-zstandard/tests/common.py not using absolute_import
   contrib/python-zstandard/tests/test_cffi.py not using absolute_import
   contrib/python-zstandard/tests/test_compressor.py not using absolute_import
   contrib/python-zstandard/tests/test_data_structures.py not using absolute_import
   contrib/python-zstandard/tests/test_decompressor.py not using absolute_import
   contrib/python-zstandard/tests/test_estimate_sizes.py not using absolute_import
   contrib/python-zstandard/tests/test_module_attributes.py not using absolute_import
   contrib/python-zstandard/tests/test_roundtrip.py not using absolute_import
   contrib/python-zstandard/tests/test_train_dictionary.py not using absolute_import
   i18n/check-translation.py not using absolute_import
   setup.py not using absolute_import
   tests/test-demandimport.py not using absolute_import
 
 #if py3exe
-  $ hg files 'set:(**.py) - grep(pygments)' | sed 's|\\|/|g' \
-  > | xargs $PYTHON3 contrib/check-py3-compat.py \
+  $ hg files 'set:(**.py) - grep(pygments)' -X hgext/fsmonitor/pywatchman \
+  > | sed 's|\\|/|g' | xargs $PYTHON3 contrib/check-py3-compat.py \
   > | sed 's/[0-9][0-9]*)$/*)/'
   hgext/convert/transport.py: error importing: <ImportError> No module named 'svn.client' (error at transport.py:*)
-  hgext/fsmonitor/pywatchman/capabilities.py: error importing: <SyntaxError> from __future__ imports must occur at the beginning of the file (__init__.py, line 30) (error at watchmanclient.py:*)
-  hgext/fsmonitor/pywatchman/compat.py: error importing: <SyntaxError> from __future__ imports must occur at the beginning of the file (__init__.py, line 30) (error at watchmanclient.py:*)
-  hgext/fsmonitor/pywatchman/encoding.py: error importing: <SyntaxError> from __future__ imports must occur at the beginning of the file (__init__.py, line 30) (error at watchmanclient.py:*)
-  hgext/fsmonitor/pywatchman/load.py: error importing: <SyntaxError> from __future__ imports must occur at the beginning of the file (__init__.py, line 30) (error at watchmanclient.py:*)
-  hgext/fsmonitor/pywatchman/pybser.py: error importing: <SyntaxError> from __future__ imports must occur at the beginning of the file (__init__.py, line 30) (error at watchmanclient.py:*)
+  hgext/fsmonitor/state.py: error importing: <SyntaxError> from __future__ imports must occur at the beginning of the file (__init__.py, line 30) (error at watchmanclient.py:*)
   hgext/fsmonitor/watchmanclient.py: error importing: <SyntaxError> from __future__ imports must occur at the beginning of the file (__init__.py, line 30) (error at watchmanclient.py:*)
   mercurial/cffi/bdiff.py: error importing: <ImportError> No module named 'mercurial.cffi' (error at check-py3-compat.py:*)
   mercurial/cffi/mpatch.py: error importing: <ImportError> No module named 'mercurial.cffi' (error at check-py3-compat.py:*)
   mercurial/cffi/osutil.py: error importing: <ImportError> No module named 'mercurial.cffi' (error at check-py3-compat.py:*)
   mercurial/scmwindows.py: error importing: <ImportError> No module named 'msvcrt' (error at win32.py:*)
   mercurial/win32.py: error importing: <ImportError> No module named 'msvcrt' (error at win32.py:*)
   mercurial/windows.py: error importing: <ImportError> No module named 'msvcrt' (error at windows.py:*)
 
 #endif
 
 #if py3exe py3pygments
   $ hg files 'set:(**.py) and grep(pygments)' | sed 's|\\|/|g' \
   > | xargs $PYTHON3 contrib/check-py3-compat.py \
   > | sed 's/[0-9][0-9]*)$/*)/'
 #endif