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--- a/libupnpp/control/avlastchg.cxx
+++ b/libupnpp/control/avlastchg.cxx
@@ -1,18 +1,19 @@
-/* Copyright (C) 2014 J.F.Dockes
- *       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 Free Software Foundation; either version 2 of the License, or
- *       (at your option) any later version.
+/* Copyright (C) 2006-2016 J.F.Dockes
  *
- *       This program is distributed in the hope that it will be useful,
- *       but WITHOUT ANY WARRANTY; without even the implied warranty of
- *       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *       GNU General Public License for more details.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
  *
- *       You should have received a copy of the GNU General Public License
- *       along with this program; if not, write to the
- *       Free Software Foundation, Inc.,
- *       59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ *   02110-1301 USA
  */
 #include "libupnpp/config.h"