Minor on logging, removed ugly if(isDebugEnabled()) for debug logging, kept only when the toString generation could potentially take long, and trasformed in tracing logs. Moved Error to Warn log level

broker/src/main/java/io/moquette/spi/impl/Qos1PublishHandler.java

@@ -50,8 +50,8 @@ class Qos1PublishHandler extends QosPublishHandler {
         String clientID = NettyUtils.clientID(channel);
         toStoreMsg.setClientID(clientID);
 
-		if (LOG.isDebugEnabled()) {
-			LOG.debug("Sending publish message to subscribers. MqttClientId = {}, topic = {}, messageId = {}, payload = {}, subscriptionTree = {}.",
+		if (LOG.isTraceEnabled()) {
+			LOG.trace("Sending publish message to subscribers. MqttClientId = {}, topic = {}, messageId = {}, payload = {}, subscriptionTree = {}.",
 					clientID, topic, msg.getMessageID(), DebugUtils.payload2Str(toStoreMsg.getMessage()),
 					subscriptions.dumpTree());
 		} else {