ONOS-3575 Netconf connection exceptions refactoring and port number in netconf-cfg.json

Change-Id: I46771a1a3ce99b25c2aecd7ba1838f9f1614e789
diff --git a/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfDeviceInfo.java b/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfDeviceInfo.java
index cb0e240..8331a12 100644
--- a/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfDeviceInfo.java
+++ b/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfDeviceInfo.java
@@ -68,7 +68,7 @@
      * @param password  the password for the device
      * @param ipAddress the ip address
      * @param port      the tcp port
-     * @param keyString the string cointaing the key.
+     * @param keyString the string containing the key.
      */
     public NetconfDeviceInfo(String name, String password, IpAddress ipAddress,
                              int port, String keyString) {