Fix SQL syntax error [pubsub]

Update statement for default node configuration was missing a comma

src/java/org/jivesoftware/openfire/pubsub/PubSubPersistenceManager.java

@@ -192,7 +192,7 @@ public class PubSubPersistenceManager {
             "UPDATE ofPubsubDefaultConf SET deliverPayloads=?, maxPayloadSize=?, persistItems=?, " +
             "maxItems=?, notifyConfigChanges=?, notifyDelete=?, notifyRetract=?, " +
             "presenceBased=?, sendItemSubscribe=?, publisherModel=?, subscriptionEnabled=?, " +
-            "accessModel=?, language=? replyPolicy=?, associationPolicy=?, maxLeafNodes=? " +
+            "accessModel=?, language=?, replyPolicy=?, associationPolicy=?, maxLeafNodes=? " +
             "WHERE serviceID=? AND leaf=?";
     private static final String ADD_DEFAULT_CONF =
             "INSERT INTO ofPubsubDefaultConf (serviceID, leaf, deliverPayloads, maxPayloadSize, " +