[2145] import isc.config explicitly, rather than hoping catch-all with 'isc'.

src/bin/bind10/tests/bind10_test.py.in

@@ -31,8 +31,8 @@ import signal
 import socket
 from isc.net.addr import IPAddr
 import time
-import isc
 import isc.log
+import isc.config
 import isc.bind10.socket_cache
 import errno
 import random