old_contents: 
  from config.experiment_config_lib import ControllerConfig
  from sts.topology import MeshTopology
  from sts.control_flow import Fuzzer
  from sts.input_traces.input_logger import InputLogger
  from sts.simulation_state import SimulationConfig
  
  # Use POX as our controller
  start_cmd = ('''./pox.py --verbose '''
                  '''sts.syncproto.pox_syncer --blocking=False '''
                  '''openflow.discovery forwarding.l2_multi '''
                  '''sts.util.socket_mux.pox_monkeypatcher '''
                  '''openflow.of_01 --address=__address__ --port=__port__''')
  
  controllers = [ControllerConfig(start_cmd, cwd="pox", sync="tcp:localhost:18899")]
  topology_class = MeshTopology
  topology_params = "num_switches=2"
  
  simulation_config = SimulationConfig(controller_configs=controllers,
                                       topology_class=topology_class,
                                       topology_params=topology_params,
                                       multiplex_sockets=True)
  
  control_flow = Fuzzer(simulation_config, check_interval=20,
                        halt_on_violation=True,
                        input_logger=InputLogger(),
                        invariant_check_name="InvariantChecker.check_liveness")
  
new_contents: 
  from config.experiment_config_lib import ControllerConfig
  from sts.topology import MeshTopology
  from sts.control_flow import Fuzzer
  from sts.input_traces.input_logger import InputLogger
  from sts.simulation_state import SimulationConfig
  
  # Use POX as our controller
  start_cmd = ('''./pox.py --verbose '''
               '''sts.syncproto.pox_syncer --blocking=False '''
               '''openflow.discovery forwarding.l2_multi '''
               '''sts.util.socket_mux.pox_monkeypatcher '''
               '''openflow.of_01 --address=__address__ --port=__port__''')
  
  controllers = [ControllerConfig(start_cmd, cwd="pox", sync="tcp:localhost:18899")]
  topology_class = MeshTopology
  topology_params = "num_switches=2"
  
  simulation_config = SimulationConfig(controller_configs=controllers,
                                       topology_class=topology_class,
                                       topology_params=topology_params,
                                       multiplex_sockets=True)
  
  control_flow = Fuzzer(simulation_config, check_interval=20,
                        halt_on_violation=True,
                        input_logger=InputLogger(),
                        invariant_check_name="InvariantChecker.check_liveness")
  
subject: Fix Minor indentation issue