Copyrights updated

com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/builtins/TestBuiltin_cospi.java

@@ -4,16 +4,15 @@
  * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * Copyright (c) 2012-2014, Purdue University
- * Copyright (c) 2013, 2016, Oracle and/or its affiliates
+ * Copyright (c) 2016, Oracle and/or its affiliates
  *
  * All rights reserved.
  */
 package com.oracle.truffle.r.test.builtins;
 
-import org.junit.*;
+import org.junit.Test;
 
-import com.oracle.truffle.r.test.*;
-import com.oracle.truffle.r.test.TestBase.Ignored;
+import com.oracle.truffle.r.test.TestBase;
 
 // Checkstyle: stop line length check
 public class TestBuiltin_cospi extends TestBase {

com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/builtins/TestBuiltin_sinpi.java

@@ -4,7 +4,7 @@
  * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * Copyright (c) 2012-2014, Purdue University
- * Copyright (c) 2013, 2016, Oracle and/or its affiliates
+ * Copyright (c) 2016, Oracle and/or its affiliates
  *
  * All rights reserved.
  */

com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/builtins/TestBuiltin_tanpi.java

@@ -4,7 +4,7 @@
  * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * Copyright (c) 2012-2014, Purdue University
- * Copyright (c) 2013, 2016, Oracle and/or its affiliates
+ * Copyright (c) 2016, Oracle and/or its affiliates
  *
  * All rights reserved.
  */