Index: /tools/gformat.py
===================================================================
--- /tools/gformat.py	(revision 11735)
+++ /tools/gformat.py	(revision 11736)
@@ -585,5 +585,6 @@
 
     # Flag dhclient is possible
-    dhclient_if[ifname] = dhcp_type(ifacedump) == DHCP_CLIENT
+    if not dhclient_if[ifname]:
+      dhclient_if[ifname] = dhcp_type(ifacedump) == DHCP_CLIENT
 
     # Add interface IP to list