def handle_output_line(self, line):
        if line:
            self.print_line(self.parse_line(line))
A context manager to toggle site configuration settings.
dataset/ETHPy150Open ClusterHQ/flocker/admin/acceptance.py/TailFormatter.handle_output_line--crossover with--dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/extensions/tests.py/set_siteconfig_settings