Fixed namespace formatting across all files.

refs: #3735

Change-Id: Ia04f0895de9906e280d6140f775bb6609db714e6
diff --git a/src/route/nexthop.cpp b/src/route/nexthop.cpp
index 7b28685..0274b9d 100644
--- a/src/route/nexthop.cpp
+++ b/src/route/nexthop.cpp
@@ -34,4 +34,4 @@
   return os;
 }
 
-}//namespace nlsr
+} // namespace nlsr