Comment fix

Author: EduFrazao

agent/src/main/java/com/cloud/agent/properties/AgentProperties.java

@@ -109,9 +109,9 @@ public class AgentProperties{
     public static final Property<String> PRIVATE_NETWORK_DEVICE = new Property<>("private.network.device", "cloudbr1");
 
     /**
-     * Private NIC device address. If this property is commented, it will be autodetected on service startup.<br>
+     * Private NIC IP address. If this property is commented or empty, it will be autodetected on service startup.<br>
      * Data type: String.<br>
-     * Default value: <code>cloudbr1</code>
+     * Default value: <code>null</code>
      */
     public static final Property<String> PRIVATE_NETWORK_DEVICE_ADDRESS = new Property<>("private.network.address", null, String.class);