core: reimplement logging using ndn-cxx's facility

Change-Id: Ifc7c5d70a61ad405dc1f1adfa522a2c0ad1586ab
Refs: #4580
diff --git a/daemon/face/transport.cpp b/daemon/face/transport.cpp
index 863b2b3..f615a10 100644
--- a/daemon/face/transport.cpp
+++ b/daemon/face/transport.cpp
@@ -29,7 +29,7 @@
 namespace nfd {
 namespace face {
 
-NFD_LOG_INIT("Transport");
+NFD_LOG_INIT(Transport);
 
 std::ostream&
 operator<<(std::ostream& os, TransportState state)