few minor fixes around netconf subsystem

Change-Id: I16ccd383dbaba9049e9b4a21ef1910cd12e5542d
diff --git a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
index 898273c..da988dc 100644
--- a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
+++ b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
@@ -264,7 +264,7 @@
         //test connection to device opening a socket to it.
         try {
             socket = new Socket(ip, port);
-            log.debug("rechability of {}, {}, {}", deviceId, socket.isConnected() && !socket.isClosed());
+            log.debug("rechability of {}, {}, {}", deviceId, socket.isConnected(), !socket.isClosed());
             return socket.isConnected() && !socket.isClosed();
         } catch (IOException e) {
             log.info("Device {} is not reachable", deviceId);