License update

lib/core/ogs-strings.c

@@ -1,3 +1,29 @@
+/**
+ *
+ * Orcania library
+ *
+ * Different functions for different purposes but that can be shared between
+ * other projects
+ *
+ * orcania.c: main functions definitions
+ *
+ * Copyright 2015-2020 Nicolas Mora <mail@babelouest.org>
+ *
+ * This program 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;
+ * version 2.1 of the License.
+ *
+ * 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 GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
 /*
  * Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
  *