Correct log message when adding trunk ports to a new VLAN

Change-Id: Ie7faefef06aa0cf02b125b9ea7019b9647c5a6dd
diff --git a/util.py b/util.py
index 271ee88..6bbbd5e 100644
--- a/util.py
+++ b/util.py
@@ -273,7 +273,7 @@
 
                     # Modify any trunk ports as needed
                     for port in trunk_ports:
-                        logging.debug('Added VLAN tag %d, name %s to switch %s', tag, name, switch_name)
+                        logging.debug('Adding VLAN tag %d, name %s to switch %s port %s', tag, name, switch_name, port)
                         s.port_add_trunk_to_vlan(port, tag)
 
                     # And now we're done with this switch