tidy up and variety validation work

booking.regn_node.inc

@@ -71,7 +71,7 @@ function _booking_node_create_mysqlview()
 			$query->leftJoin('booking_studygroup_mapping', 's' . $id, 'p.nid = s' . $id . '.booking_node_id and s' . $id . '.booking_studygroup_id = ' . $id);			
 		}		
 	}
-		
+
 	//filter the results either by current active event
 	// @todo is this filter really necessary?
 	$query->condition('p.booking_eventid', $event->eid, '=');