core: reimplement logging using ndn-cxx's facility

Change-Id: Ifc7c5d70a61ad405dc1f1adfa522a2c0ad1586ab
Refs: #4580
diff --git a/daemon/face/udp-factory.cpp b/daemon/face/udp-factory.cpp
index 377d3b1..2b7b3c8 100644
--- a/daemon/face/udp-factory.cpp
+++ b/daemon/face/udp-factory.cpp
@@ -38,7 +38,7 @@
 namespace ip = boost::asio::ip;
 namespace net = ndn::net;
 
-NFD_LOG_INIT("UdpFactory");
+NFD_LOG_INIT(UdpFactory);
 NFD_REGISTER_PROTOCOL_FACTORY(UdpFactory);
 
 const std::string&