Exception on shutdown

[Timple]

KeyboardInterrupt should be handled. Would you accept a PR for this?

[twist_stamper-45] Traceback (most recent call last):
[twist_stamper-45]   File "/opt/ros/iron/lib/twist_stamper/twist_stamper", line 33, in <module>
[twist_stamper-45]     sys.exit(load_entry_point('twist-stamper==0.0.3', 'console_scripts', 'twist_stamper')())
[twist_stamper-45]   File "/opt/ros/iron/lib/python3.10/site-packages/twist_stamper/twist_stamper.py", line 55, in main
[twist_stamper-45]     rclpy.spin(twist_stamper)
[twist_stamper-45]   File "/opt/ros/iron/lib/python3.10/site-packages/rclpy/__init__.py", line 228, in spin
[twist_stamper-45]     executor.spin_once()
[twist_stamper-45]   File "/opt/ros/iron/lib/python3.10/site-packages/rclpy/executors.py", line 748, in spin_once
[twist_stamper-45]     self._spin_once_impl(timeout_sec)
[twist_stamper-45]   File "/opt/ros/iron/lib/python3.10/site-packages/rclpy/executors.py", line 737, in _spin_once_impl
[twist_stamper-45]     handler, entity, node = self.wait_for_ready_callbacks(timeout_sec=timeout_sec)
[twist_stamper-45]   File "/opt/ros/iron/lib/python3.10/site-packages/rclpy/executors.py", line 723, in wait_for_ready_callbacks
[twist_stamper-45]     return next(self._cb_iter)
[twist_stamper-45]   File "/opt/ros/iron/lib/python3.10/site-packages/rclpy/executors.py", line 620, in _wait_for_ready_callbacks
[twist_stamper-45]     wait_set.wait(timeout_nsec)
[twist_stamper-45] KeyboardInterrupt

[joshnewans]

Yeah, go for it!

[reinzor]

#6