Fixed namespace formatting across all files.

refs: #3735

Change-Id: Ia04f0895de9906e280d6140f775bb6609db714e6
diff --git a/tests/test-adjacent.cpp b/tests/test-adjacent.cpp
index 60f9a87..a709fad 100644
--- a/tests/test-adjacent.cpp
+++ b/tests/test-adjacent.cpp
@@ -49,5 +49,5 @@
 
 BOOST_AUTO_TEST_SUITE_END()
 
-} //namespace tests
-} //namespace nlsr
+} // namespace test
+} // namespace nlsr