util: rename NDN_CXX_LOG_* macros to NDN_LOG_*

refs #3562

Change-Id: I7366d20e064d483a852c39def523644950d2f2e3
diff --git a/src/util/logging.hpp b/src/util/logging.hpp
index af000c4..96e1bcb 100644
--- a/src/util/logging.hpp
+++ b/src/util/logging.hpp
@@ -43,7 +43,7 @@
 {
 public:
   /** \brief register a new logger
-   *  \note App should declare a new logger with \p NDN_CXX_LOG_INIT macro.
+   *  \note App should declare a new logger with \p NDN_LOG_INIT macro.
    */
   static void
   addLogger(Logger& logger);