table: Make LRU the default CS replacement policy

Change-Id: I01fe000544da9df860437ffc8869bc6b20e844c0
refs: #4728
diff --git a/daemon/mgmt/tables-config-section.hpp b/daemon/mgmt/tables-config-section.hpp
index d1ac1d4..932df2c 100644
--- a/daemon/mgmt/tables-config-section.hpp
+++ b/daemon/mgmt/tables-config-section.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+/*
+ * Copyright (c) 2014-2018,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -38,7 +38,7 @@
  *  tables
  *  {
  *    cs_max_packets 65536
- *    cs_policy priority_fifo
+ *    cs_policy lru
  *    cs_unsolicited_policy drop-all
  *
  *    strategy_choice
diff --git a/daemon/table/cs.cpp b/daemon/table/cs.cpp
index 1663d8f..85ef388 100644
--- a/daemon/table/cs.cpp
+++ b/daemon/table/cs.cpp
@@ -37,11 +37,10 @@
 
 NFD_LOG_INIT(ContentStore);
 
-unique_ptr<Policy>
+static unique_ptr<Policy>
 makeDefaultPolicy()
 {
-  const std::string DEFAULT_POLICY = "priority_fifo";
-  return Policy::create(DEFAULT_POLICY);
+  return Policy::create("lru");
 }
 
 Cs::Cs(size_t nMaxPackets)