rename log macros to comply with ISO C++ standard

refs: #4341

Change-Id: Idb05f59660f42c01a7bf014c6fff4125a28327f2
diff --git a/src/route/nexthop-list.cpp b/src/route/nexthop-list.cpp
index 65f6782..a0a585a 100644
--- a/src/route/nexthop-list.cpp
+++ b/src/route/nexthop-list.cpp
@@ -113,7 +113,7 @@
 
   for (std::set<NextHop, NextHopComparator>::iterator it = m_nexthopList.begin();
        it != m_nexthopList.end() ; it++, i++) {
-    _LOG_DEBUG("Nexthop " << i << ": " << (*it).getConnectingFaceUri()
+    NLSR_LOG_DEBUG("Nexthop " << i << ": " << (*it).getConnectingFaceUri()
                << " Route Cost: " << (*it).getRouteCost());
   }
 }