Fix: Default to empty sensor description

Author: henrikekblad

libraries/MySensors/MySensor.cpp

@@ -484,7 +484,7 @@ void MySensor::sendBatteryLevel(uint8_t value, bool enableAck) {
 }
 
 void MySensor::present(uint8_t childSensorId, uint8_t sensorType, bool enableAck, const char*description) {
-	sendRoute(build(msg, nc.nodeId, GATEWAY_ADDRESS, childSensorId, C_PRESENTATION, sensorType, enableAck).set(description));
+	sendRoute(build(msg, nc.nodeId, GATEWAY_ADDRESS, childSensorId, C_PRESENTATION, sensorType, enableAck).set(childSensorId==NODE_SENSOR_ID?LIBRARY_VERSION:description));
 }
 
 void MySensor::sendSketchInfo(const char *name, const char *version, bool enableAck) {

libraries/MySensors/MySensor.h

@@ -180,7 +180,7 @@ class MySensor
 	* @param ack Set this to true if you want destination node to send ack back to this node. Default is not to request any ack.
 	* @param description A textual description of the sensor. Defaults to library version.
 	*/
-	void present(uint8_t sensorId, uint8_t sensorType, bool ack=false, const char *description=LIBRARY_VERSION);
+	void present(uint8_t sensorId, uint8_t sensorType, bool ack=false, const char *description="");
 
 	/**
 	 * Sends sketch meta information to the gateway. Not mandatory but a nice thing to do.