Adjust includes for the updated locations of ndn-cxx security headers

Change-Id: I5a94879966de2c166fed8dedda0ed1d65c33c300
diff --git a/tools/nfdc/status-report.hpp b/tools/nfdc/status-report.hpp
index 1658852..f88b175 100644
--- a/tools/nfdc/status-report.hpp
+++ b/tools/nfdc/status-report.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2017,  Regents of the University of California,
+ * Copyright (c) 2014-2020,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -29,7 +29,7 @@
 #include "module.hpp"
 #include <ndn-cxx/face.hpp>
 #include <ndn-cxx/security/key-chain.hpp>
-#include <ndn-cxx/security/v2/validator.hpp>
+#include <ndn-cxx/security/validator.hpp>
 
 namespace nfd {
 namespace tools {
@@ -37,7 +37,7 @@
 
 using ndn::Face;
 using ndn::KeyChain;
-using ndn::security::v2::Validator;
+using ndn::security::Validator;
 
 enum class ReportFormat {
   XML = 1,