VOL-4836 - Cosmetic edits to trigger a jenkins job.

Makefile
makefiles/
----------
  o Added targets help, lint, sterile, todo, {go,java,python}-all.
  o replace "rm -rf" with make builtin $(RM) -r.
  o make clean: pass --no-run-if-empty to avoid a failure condition.

tox.ini
-------
  o Test target runs cleanly with python v3.10.6 so include as a valid interpreter version.

python/
python/test/
------------
  o Cosmetic edit, update copyright notice to trigger a jenkins job.

Change-Id: I3f10ada2774b0c5c742ee4aabcd60bbb56ab76dc
diff --git a/test/test-go-proto-consistency.sh b/test/test-go-proto-consistency.sh
index 9d238df..4067d53 100755
--- a/test/test-go-proto-consistency.sh
+++ b/test/test-go-proto-consistency.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-# Copyright 2018 the original author or authors.
+# Copyright 2018-2023 Open Networking Foundation (ONF) and the ONF Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -50,4 +50,3 @@
     echo "Test successful. All go proto build outputs are committed"
     exit 0
 fi
-