Updating copyrights

New format: 'Copyright .year-present Open Networking Laboratory'

Change-Id: I1a9e58b355b775e75245ad875a2d7a4df3f03098
diff --git a/core/net/src/main/java/org/onosproject/net/packet/impl/PacketDriverProvider.java b/core/net/src/main/java/org/onosproject/net/packet/impl/PacketDriverProvider.java
index cee349b..cf2230f 100644
--- a/core/net/src/main/java/org/onosproject/net/packet/impl/PacketDriverProvider.java
+++ b/core/net/src/main/java/org/onosproject/net/packet/impl/PacketDriverProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/core/net/src/main/java/org/onosproject/net/packet/impl/PacketManager.java b/core/net/src/main/java/org/onosproject/net/packet/impl/PacketManager.java
index 5f6014d..b068270 100644
--- a/core/net/src/main/java/org/onosproject/net/packet/impl/PacketManager.java
+++ b/core/net/src/main/java/org/onosproject/net/packet/impl/PacketManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2015 Open Networking Laboratory
+ * Copyright 2014-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/core/net/src/main/java/org/onosproject/net/packet/impl/package-info.java b/core/net/src/main/java/org/onosproject/net/packet/impl/package-info.java
index f3af485..65564f3 100644
--- a/core/net/src/main/java/org/onosproject/net/packet/impl/package-info.java
+++ b/core/net/src/main/java/org/onosproject/net/packet/impl/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 Open Networking Laboratory
+ * Copyright 2014-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.