Rename the copyright authors from NXT to Dawn
diff --git a/examples/CubeReflection.cpp b/examples/CubeReflection.cpp
index f1e7d3c..2e82ba2 100644
--- a/examples/CubeReflection.cpp
+++ b/examples/CubeReflection.cpp
@@ -1,4 +1,4 @@
-// Copyright 2017 The NXT Authors
+// Copyright 2017 The Dawn Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.