Fix python shebang

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

Change-Id: I3765d2b73843db0137fe79065ab4051e1e52eab3

doc/source/test-vrrp.rst

@@ -104,7 +104,7 @@ And then run OSKen-VRRP::
 
 Here's the helper executable, os_ken-vrrp::
 
-    #!/usr/bin/env python
+    #!/usr/bin/env python3
     #
     # Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
     # Copyright (C) 2013 Isaku Yamahata <yamahata at valinux co jp>

os_ken/cmd/manager.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright (C) 2011, 2012 Nippon Telegraph and Telephone Corporation.
 # Copyright (C) 2011 Isaku Yamahata <yamahata at valinux co jp>

os_ken/cmd/of_config_cli.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
 # Copyright (C) 2013 YAMAMOTO Takashi <yamamoto at valinux co jp>

os_ken/cmd/ofa_neutron_agent.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright (C) 2014 VA Linux Systems Japan K.K.
 # All Rights Reserved.

os_ken/cmd/rpc_cli.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
 # Copyright (C) 2013 YAMAMOTO Takashi <yamamoto at valinux co jp>

os_ken/tests/integrated/run_tests_with_ovs12.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

os_ken/tests/packet_data_generator3/gen.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 import getopt
 import os

os_ken/tests/switch/run_mininet.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys
 

tools/normalize_json.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 # Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
 # Copyright (C) 2013 YAMAMOTO Takashi <yamamoto at valinux co jp>

tools/topology_graphviz.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 # Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
 # Copyright (C) 2013 YAMAMOTO Takashi <yamamoto at valinux co jp>