Fix up commenting

SlamController/slam_servicer.py

@@ -12,7 +12,7 @@ class SlamServicer(SlamController_pb2_grpc.SlamControlServicer):
         self.slam = slam.SlamStreamer(lidar_connection=lidar_connection)
 
     def start_map_streaming(self, request, context):
-        print('Slam THread: ' + str(slam_thread)')
+        print('Received Map Start Streaming Request')
         if self.slam_thread is None:
             print('initialising slam_thread')
             # Don't bother creating and starting slam more than once.