demos: Copyright update
diff --git a/demos/linmath.h b/demos/linmath.h
index b60da85..d558c40 100644
--- a/demos/linmath.h
+++ b/demos/linmath.h
@@ -1,18 +1,33 @@
 /*
-            DO WHAT THE **** YOU WANT TO PUBLIC LICENSE
-                    Version 2, December 2004
-
- Copyright (C) 2013 Wolfgang 'datenwolf' Draxinger <code@datenwolf.net>
-
- Everyone is permitted to copy and distribute verbatim or modified
- copies of this license document, and changing it is allowed as long
- as the name is changed.
-
-            DO WHAT THE **** YOU WANT TO PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. You just DO WHAT THE **** YOU WANT TO.
-*/
+ * Copyright (c) 2015-2016 The Khronos Group Inc.
+ * Copyright (c) 2015-2016 Valve Corporation
+ * Copyright (c) 2015-2016 LunarG, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and/or associated documentation files (the "Materials"), to
+ * deal in the Materials without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Materials, and to permit persons to whom the Materials are
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice(s) and this permission notice shall be included in
+ * all copies or substantial portions of the Materials.
+ *
+ * The Materials are Confidential Information as defined by the Khronos
+ * Membership Agreement until designated non-confidential by Khronos, at which
+ * point this condition clause shall be removed.
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ *
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
+ * USE OR OTHER DEALINGS IN THE MATERIALS.
+ *
+ * Relicensed from the WTFPL (http://www.wtfpl.net/faq/).
+ */
 
 #ifndef LINMATH_H
 #define LINMATH_H