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

Makefile
makefiles/
   o Pass grep --no-filename to fix problem with Makefile printed by help.
   o Checkin makefile libraries for common constants and targets.

docker/
internal/pkg/
pkg/mocks/s
cmd/openolt-adapter/
--------------------
   o Update copyright notice to force a trivial source change.
   o Delta will initiate a jenkins job.

Change-Id: Ie6d522d52dc6353219d80e1cb04aa5cdcad8b6a6
diff --git a/internal/pkg/core/openolt_eventmgr_test.go b/internal/pkg/core/openolt_eventmgr_test.go
index 63361ce..c7fd75b 100644
--- a/internal/pkg/core/openolt_eventmgr_test.go
+++ b/internal/pkg/core/openolt_eventmgr_test.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * 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.