core: reimplement logging using ndn-cxx's facility

Change-Id: Ifc7c5d70a61ad405dc1f1adfa522a2c0ad1586ab
Refs: #4580
diff --git a/rib/rib-manager.cpp b/rib/rib-manager.cpp
index c955a0d..ecf20d9 100644
--- a/rib/rib-manager.cpp
+++ b/rib/rib-manager.cpp
@@ -42,7 +42,7 @@
 namespace nfd {
 namespace rib {
 
-NFD_LOG_INIT("RibManager");
+NFD_LOG_INIT(RibManager);
 
 const Name RibManager::LOCAL_HOST_TOP_PREFIX = "/localhost/nfd";
 const Name RibManager::LOCAL_HOP_TOP_PREFIX = "/localhop/nfd";