Fix comment for presentation

Author: henrikekblad

libraries/MySensors/MySensor.h

@@ -178,7 +178,7 @@ class MySensor
 	* @param sensorId Select a unique sensor id for this sensor. Choose a number between 0-254.
 	* @param sensorType The sensor type. See sensor typedef in MyMessage.h.
 	* @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.
+	* @param description A textual description of the sensor.
 	*/
 	void present(uint8_t sensorId, uint8_t sensorType, bool ack=false, const char *description="");