code: def format(self):
          
          act = self.actor
          time = self.time
          return u"{} {} {} <{}> {!s} {}\t{}\n".format(self.oldhexsha,
                                                       self.newhexsha,
                                                       act.name,
                                                       act.email,
                                                       time[0],
                                                       altz_to_utctz_str(time[1]),
                                                       self.message)
docs: :return: a string suitable to be placed in a reflog file