Rename the copyright authors from NXT to Dawn
diff --git a/generator/templates/mock_api.h b/generator/templates/mock_api.h
index 30a89d7..7fcdd32 100644
--- a/generator/templates/mock_api.h
+++ b/generator/templates/mock_api.h
@@ -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.