Fix syntax error

Change-Id: Ia8819e00c7fc58f5bea87a24ed1d3485442c6219
diff --git a/util.py b/util.py
index 9f250ee..1d1a935 100644
--- a/util.py
+++ b/util.py
@@ -282,7 +282,7 @@
 
         # If we've got this far, things were successful. Save config
         # on all the switches so it will persist across reboots
-        for switch in switches_done
+        for switch in switches_done:
             s = self.get_switch_driver(switch, config)
             s.switch_connect(config.switches[switch].username, config.switches[switch].password)
             s.switch_save_running_config()