Revert r240270 ("Fixed/added namespace ending comments using clang-tidy").

llvm-svn: 240353
diff --git a/clang/lib/Frontend/FrontendActions.cpp b/clang/lib/Frontend/FrontendActions.cpp
index bcfd77e..6f202a15 100644
--- a/clang/lib/Frontend/FrontendActions.cpp
+++ b/clang/lib/Frontend/FrontendActions.cpp
@@ -554,7 +554,7 @@
     }
 #undef DUMP_BOOLEAN
   };
-} // namespace
+}
 
 void DumpModuleInfoAction::ExecuteAction() {
   // Set up the output file.