code style fix

Change-Id: I2f57ac1eb9c01063752adfc452ff0f1db3367fe3
diff --git a/tests/unit-tests/protocol-encoders.t.cpp b/tests/unit-tests/protocol-encoders.t.cpp
index 0131e83..f2411f1 100644
--- a/tests/unit-tests/protocol-encoders.t.cpp
+++ b/tests/unit-tests/protocol-encoders.t.cpp
@@ -171,6 +171,6 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 
-}  // namespace tests
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace tests
+} // namespace ndncert
+} // namespace ndn