code: def format_original_error(self):
          
          # TODO eventually we'll have sass-specific errors that will want nicer
          # "names" in browser display and stderr
          return "".join((
              type(self.exc).__name__, ": ", six.text_type(self.exc), "\n",
          ))
docs: Return the typical "TypeError: blah blah" for the original wrapped
          error.