AP_DDS: fixed pep257

Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_joy_msg_received.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # Copyright 2023 ArduPilot.org.
 #
 # This program is free software: you can redistribute it and/or modify
@@ -15,11 +14,13 @@
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 """
-Bring up ArduPilot SITL and check the Joy message is being published by 
-arming the copter and command a throttle up. Check that the vehicle climbs.
+Bring up ArduPilot SITL and check the Joy message is being published.
+
+Arms the copter and commands a throttle up. Check that the vehicle climbs.
 
 colcon test --packages-select ardupilot_dds_tests \
 --event-handlers=console_cohesion+ --pytest-args -k test_joy_msg_received
+
 """
 
 import rclpy