misc: switch copyright to Valve
diff --git a/layers/vk_layer_extension_utils.cpp b/layers/vk_layer_extension_utils.cpp
index 6f0d655..84ce0d1 100644
--- a/layers/vk_layer_extension_utils.cpp
+++ b/layers/vk_layer_extension_utils.cpp
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright (C) 2015 LunarG, Inc.
+ * Copyright (C) 2015 Valve Corporation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),