Refer to TLV-TYPE as "number" instead of "code"

refs #2880

Change-Id: Ie3bd9dc4cb5ca4c3f7aafeed37266adba88b82fb
diff --git a/src/lp/tlv.hpp b/src/lp/tlv.hpp
index 0fd782e..5ab1a92 100644
--- a/src/lp/tlv.hpp
+++ b/src/lp/tlv.hpp
@@ -1,5 +1,5 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
+/*
  * Copyright (c) 2013-2017 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
@@ -27,7 +27,7 @@
 namespace tlv {
 
 /**
- * \brief TLV-TYPE code assignments for NDNLPv2
+ * \brief TLV-TYPE numbers for NDNLPv2
  */
 enum {
   LpPacket = 100,