fix free sql (#29579)

* fix free sql

* Update orders_list.php

htdocs/compta/prelevement/list.php

@@ -545,7 +545,7 @@ if ($num == 0) {
 	print '<tr><td colspan="8"><span class="opacitymedium">'.$langs->trans("None").'</span></td></tr>';
 }
 
-$db->free($result);
+$db->free($resql);
 
 $parameters = array('arrayfields' => $arrayfields, 'sql' => $sql);
 $reshook = $hookmanager->executeHooks('printFieldListFooter', $parameters, $object, $action); // Note that $action and $object may have been modified by hook

htdocs/compta/prelevement/orders_list.php

@@ -460,7 +460,7 @@ if ($num == 0) {
 	print '<tr><td colspan="5"><span class="opacitymedium">'.$langs->trans("None").'</span></td></tr>';
 }
 
-$db->free($result);
+$db->free($resql);
 
 $parameters = array('arrayfields' => $arrayfields, 'sql' => $sql);
 $reshook = $hookmanager->executeHooks('printFieldListFooter', $parameters, $object, $action); // Note that $action and $object may have been modified by hook