docs: improve Doxygen comments.

refs: #1435

Change-Id: I21624ef4eec393c82a50229a07e8277fb6ae4ddf
diff --git a/src/tlv/adjacency-lsa.hpp b/src/tlv/adjacency-lsa.hpp
index d9c5a73..6ba7d9d 100644
--- a/src/tlv/adjacency-lsa.hpp
+++ b/src/tlv/adjacency-lsa.hpp
@@ -34,16 +34,16 @@
 #include <list>
 
 namespace nlsr {
-namespace tlv  {
+namespace tlv {
 
-/**
- * @brief Data abstraction for AdjacencyLsa
- *
- * AdjacencyLsa := ADJACENCY-LSA-TYPE TLV-LENGTH
- *                   LsaInfo
- *                   Adjacency*
- *
- * @sa http://redmine.named-data.net/projects/nlsr/wiki/LSDB_DataSet
+/*!
+   \brief Data abstraction for AdjacencyLsa
+
+   AdjacencyLsa := ADJACENCY-LSA-TYPE TLV-LENGTH
+                     LsaInfo
+                     Adjacency*
+
+   \sa http://redmine.named-data.net/projects/nlsr/wiki/LSDB_DataSet
  */
 class AdjacencyLsa
 {