build: == Dependency change == NLSR now depends on ndn-cxx library

Refs: #1535

Change-Id: I4c7c0c3dcfcac6ee91648a46c07e426adbb5bd20
diff --git a/src/adjacent.cpp b/src/adjacent.cpp
index 807eb0b..3212c1e 100644
--- a/src/adjacent.cpp
+++ b/src/adjacent.cpp
@@ -2,6 +2,7 @@
 #include <string>
 #include <cmath>
 #include <limits>
+
 #include "adjacent.hpp"
 
 namespace nlsr {