Fixed namespace formatting across all files.

refs: #3735

Change-Id: Ia04f0895de9906e280d6140f775bb6609db714e6
diff --git a/src/route/routing-table.hpp b/src/route/routing-table.hpp
index 3564a77..1fd8049 100644
--- a/src/route/routing-table.hpp
+++ b/src/route/routing-table.hpp
@@ -110,6 +110,6 @@
   ndn::time::seconds m_routingCalcInterval;
 };
 
-}//namespace nlsr
+} // namespace nlsr
 
 #endif //NLSR_ROUTING_TABLE_HPP