code style fix

Change-Id: I2f57ac1eb9c01063752adfc452ff0f1db3367fe3
diff --git a/src/name-assignment/assignment-random.hpp b/src/name-assignment/assignment-random.hpp
index c65cd5d..93e288d 100644
--- a/src/name-assignment/assignment-random.hpp
+++ b/src/name-assignment/assignment-random.hpp
@@ -41,4 +41,4 @@
 } // namespace ndncert
 } // namespace ndn
 
-#endif //NDNCERT_ASSIGNMENT_RANDOM_HPP
+#endif // NDNCERT_ASSIGNMENT_RANDOM_HPP