message: spelling: behavior
diff: @@ -77,7 +77,7 @@ def _ustr(obj):
  then < returns the unicode object | encodes it with the default encoding | ... >.
  """
  try:
  - # If this works, then _ustr(obj) has the same behaviour as str(obj), so
  + # If this works, then _ustr(obj) has the same behavior as str(obj), so
  # it won't break any existing code.
  return str(obj)
  