fix fatal error in patch 231

cosmogramme/sql/patch/patch_231.php

 <?php
-$adapter = Zend_Registry::get('sql')
+$adapter = Zend_Registry::get('sql');
 $adapter->query('ALTER TABLE stats_notices MODIFY nb_visu int(11) default 0');
 $adapter->query('ALTER TABLE stats_notices MODIFY nb_resa int(11) default 0');
 ?>