Fix client status for registered IP

• Set client status to "Updated" when no update is required (because hostname IP is already registered/updated).
• Set client status to "Error" when any error is detected during an attempted update.

files/ddns-script/usr/lib/ddnsmngr/ddnsmngr_updater.sh

@@ -404,6 +404,8 @@ while : ; do
 		else
 			write_log 3 "IP update not accepted by DDNS Provider"
 		fi
+	elif [ "$CURRENT_IP" = "$REGISTERED_IP" ]; then
+		write_log 6 "No update needed - L: '$CURRENT_IP' == R: '$REGISTERED_IP'"
 	fi
 
 	# now we wait for check interval before testing if update was recognized