=item C<input arg:>
* $query could be a simple keyword or a complete CCL query wich is depending on your ccl file.
- * @servers is optionnal. default one is read on koha.xml
+ * @servers is optionnal. default one is read on koha-conf.xml
=item C<Output arg:>
* $error is a string which containt the description error if there is one. Else it's empty.