docs: Updating copyright notices in files
diff --git a/helper/ndn-strategy-choice-helper.cpp b/helper/ndn-strategy-choice-helper.cpp
index e6b6ea6..53e0209 100644
--- a/helper/ndn-strategy-choice-helper.cpp
+++ b/helper/ndn-strategy-choice-helper.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2011-2014  Regents of the University of California.
+ * Copyright (c) 2011-2015  Regents of the University of California.
  *
  * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
  * contributors.