update Doxygen

Change-Id: I70f3fbab713ca8595819b18ee1a43ef9b1713af8

diff --git a/inc/gl.h b/inc/gl.h
index 2550307..cac4552 100644 (file)
--- a/inc/gl.h
+++ b/inc/gl.h
@@ -6,9 +6,9 @@
 
 /**
  * @file               gl.h
- * @brief              This is the header file for the OpenGL&Reg; ES 1.1.
+ * @brief              This is the header file for the OpenGL® ES 1.1.
  *
- * This header file contains the declarations of the OpenGL&Reg; ES 1.1.
+ * This header file contains the declarations of the OpenGL® ES 1.1.
  */
 
 #include "glplatform.h"