build: Warnings correction for gcc 4.2

Also in this commit some code style corrections.

Change-Id: Idf2b5b96b328fb3dbea7440362c84d7759a10ec5
Refs: #1429
diff --git a/tests/transport/test-unix-transport.cpp b/tests/transport/test-unix-transport.cpp
index ffb0494..535b63c 100644
--- a/tests/transport/test-unix-transport.cpp
+++ b/tests/transport/test-unix-transport.cpp
@@ -4,12 +4,11 @@
  * See COPYING for copyright and distribution information.
  */
 
-#include <boost/test/unit_test.hpp>
-#include <boost/test/output_test_stream.hpp>
-
 #include "transport/unix-transport.hpp"
 #include "util/config-file.hpp"
 
+#include "boost-test.hpp"
+
 namespace ndn {
 
 class UnixTransportFixture
@@ -63,4 +62,3 @@
 BOOST_AUTO_TEST_SUITE_END()
 
 } // namespace ndn
-