Fixed copyrights.

com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/Row.java

@@ -6,7 +6,7 @@
  * Copyright (c) 1995, 1996, 1997  Robert Gentleman and Ross Ihaka
  * Copyright (c) 1995-2014, The R Core Team
  * Copyright (c) 2002-2008, The R Foundation
- * Copyright (c) 2013, Oracle and/or its affiliates
+ * Copyright (c) 2013, 2016, Oracle and/or its affiliates
  *
  * All rights reserved.
  */

com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/UpdateDiag.java

 /*
- * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it