tests: TopologyTester avoid deprecated ndn::Face::expressInterest overload

refs #3702

Change-Id: I6dcb76be1fcfaa184068390b5ab25640d21a937b
diff --git a/tests/daemon/fw/topology-tester.cpp b/tests/daemon/fw/topology-tester.cpp
index 9224b40..d934e35 100644
--- a/tests/daemon/fw/topology-tester.cpp
+++ b/tests/daemon/fw/topology-tester.cpp
@@ -204,7 +204,7 @@
   Name name(prefix);
   name.appendTimestamp();
   shared_ptr<Interest> interest = makeInterest(name);
-  face.expressInterest(*interest, bind([]{}));
+  face.expressInterest(*interest, nullptr, nullptr, nullptr);
 
   if (n > 1) {
     scheduler::schedule(interval, bind(&TopologyTester::addIntervalConsumer, this,