Fix error in cmdctl's unittest code.(No need review.)

git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@1768 e5f2f494-b856-4b98-b285-d166d9295462

src/bin/cmdctl/tests/cmdctl_test.py

@@ -47,6 +47,7 @@ class MySecureHTTPServer(SecureHTTPServer):
         self.user_sessions = {}
         self.idle_timeout = 1200
         self.cmdctrl = MyCommandControl()
+        self._verbose = False
 
 class MyCommandControl(CommandControl):
     def __init__(self):