More 2023 tweaks.

automation/network/poll_errors.py

@@ -1,6 +1,6 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
 #
-# Copyright (c) 2017-2020  Joe Clarke <jclarke@cisco.com>
+# Copyright (c) 2017-2023  Joe Clarke <jclarke@cisco.com>
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without