[Truffle] - Adds copyright header to RandomPrimitiveNodes.

Author: lucasallan

truffle/src/main/java/org/jruby/truffle/nodes/rubinius/RandomPrimitiveNodes.java

@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2013, 2015 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
 package org.jruby.truffle.nodes.rubinius;
 
 import com.oracle.truffle.api.CompilerDirectives;