constness fixes, round-trip and fuzz-testing for CHOICE
diff --git a/skeletons/GraphicString.h b/skeletons/GraphicString.h
index 420521d..82b1929 100644
--- a/skeletons/GraphicString.h
+++ b/skeletons/GraphicString.h
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2003 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
  * Redistribution and modifications are permitted subject to BSD license.
  */
 #ifndef	_GraphicString_H_