table: Make LRU the default CS replacement policy

Change-Id: I01fe000544da9df860437ffc8869bc6b20e844c0
refs: #4728
diff --git a/nfd.conf.sample.in b/nfd.conf.sample.in
index 8efc2ab..c015eb0 100644
--- a/nfd.conf.sample.in
+++ b/nfd.conf.sample.in
@@ -51,7 +51,7 @@
 
   ; Set the CS replacement policy.
   ; Available policies are: priority_fifo, lru
-  cs_policy priority_fifo
+  cs_policy lru
 
   ; Set a policy to decide whether to cache or drop unsolicited Data.
   ; Available policies are: drop-all, admit-local, admit-network, admit-all