Don't add space between None and a dot.

Closes #487
diff --git a/yapftests/reformatter_python3_test.py b/yapftests/reformatter_python3_test.py
index c6a3e99..f9ce857 100644
--- a/yapftests/reformatter_python3_test.py
+++ b/yapftests/reformatter_python3_test.py
@@ -181,6 +181,13 @@
     uwlines = yapf_test_helper.ParseAndUnwrap(unformatted_code)
     self.assertCodeEqual(expected_formatted_code, reformatter.Reformat(uwlines))
 
+  def testNoneKeyword(self):
+    code = """\
+None.__ne__()
+"""
+    uwlines = yapf_test_helper.ParseAndUnwrap(code)
+    self.assertCodeEqual(code, reformatter.Reformat(uwlines))
+
   def testAsyncWithPrecedingComment(self):
     if sys.version_info[1] < 5:
       return