Fix python shebang

The current shebang requires /usr/bin/python which is not available in
Ubuntu Jammy by default.

This also fixes some unnecessary/missing shebangs.

Change-Id: Ib25a0a7f39f68f43622609391710dd3b1abc2d00

neutron/cmd/destroy_patch_ports.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # Copyright 2020 Red Hat, Inc.
 # All Rights Reserved.
 #

neutron/cmd/ovn/migration_mtu.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # Copyright 2018 Red Hat, Inc.
 # All Rights Reserved.
 #

neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#
 # Copyright 2012 Cisco Systems, Inc.
 # All Rights Reserved.
 #

neutron/server/api_eventlet.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#
 # Copyright (c) 2022, OVH SAS
 # All Rights Reserved.
 #

neutron/server/rpc_eventlet.py

@@ -1,5 +1,4 @@
-#!/usr/bin/env python
-
+#
 # Copyright 2011 VMware, Inc.
 # All Rights Reserved.
 #

neutron/server/wsgi_eventlet.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain
 #    a copy of the License at

neutron/tests/common/agents/l3_agent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain

neutron/tests/common/agents/ovs_agent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
 #    not use this file except in compliance with the License. You may obtain

neutron/tests/fullstack/agents/dhcp_agent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2016 OVH SAS
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may

neutron/tests/fullstack/agents/l3_agent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2017 Eayun, Inc.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may

neutron/tests/fullstack/agents/ovs_agent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright 2017 OVH SAS
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may

neutron/tests/fullstack/servers/placement.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2019 Ericsson
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may

neutron/tests/functional/agent/l3/bin/cmd_keepalived_state_change.py

@@ -1,4 +1,5 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
+
 # Copyright (c) 2015 Red Hat Inc.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may

neutron/tests/functional/agent/linux/bin/ip_monitor.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright (c) 2019 Red Hat, Inc.
 # All Rights Reserved.

neutron/tests/functional/agent/linux/bin/ipt_binname.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright (C) 2014 VA Linux Systems Japan K.K.
 # Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>

neutron/tests/functional/agent/linux/simple_daemon.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # Copyright 2014 Red Hat, Inc.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may

neutron/tests/functional/cmd/process_spawn.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # Copyright 2016 Red Hat, Inc.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may

neutron/tests/unit/agent/linux/failing_process.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # Copyright 2015 Red Hat, Inc.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may