tests+tools: minor code cleanup

Change-Id: Ic3356d4a18a8e5eeb45fc076fc0563c3d1549c8a
diff --git a/tests/daemon/mgmt/forwarder-status-manager.t.cpp b/tests/daemon/mgmt/forwarder-status-manager.t.cpp
index bb728f2..e40e20d 100644
--- a/tests/daemon/mgmt/forwarder-status-manager.t.cpp
+++ b/tests/daemon/mgmt/forwarder-status-manager.t.cpp
@@ -53,7 +53,7 @@
 BOOST_AUTO_TEST_CASE(GeneralStatusDataset)
 {
   // cause counters to be non-zero
-  this->advanceClocks(time::seconds(3600));
+  this->advanceClocks(1_h);
   m_forwarder.getFib().insert("ndn:/fib1");
   m_forwarder.getPit().insert(*makeInterest("ndn:/pit1"));
   m_forwarder.getPit().insert(*makeInterest("ndn:/pit2"));