p_usrloc: location.sql missing INSTANCE_COL

src/modules/p_usrloc/location.sql

@@ -17,6 +17,7 @@ CREATE TABLE location (
     user_agent VARCHAR(255) DEFAULT '' NOT NULL,
     socket VARCHAR(64) DEFAULT NULL,
     methods INT(11) DEFAULT NULL,
+    instance VARCHAR(255) DEFAULT NULL,
     reg_id INTEGER DEFAULT 0 NOT NULL
 ) ENGINE=MyISAM;