Update copyright headers after acquisition by secunet

src/charon/charon.c

@@ -3,7 +3,8 @@
  * Copyright (C) 2005-2009 Martin Willi
  * Copyright (C) 2006 Daniel Roethlisberger
  * Copyright (C) 2005 Jan Hutter
- * HSR Hochschule fuer Technik Rapperswil
+ *
+ * Copyright (C) secunet Security Networks AG
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the