add end-of-file-fixer

benchmarks/test_data.cpp

@@ -140,4 +140,4 @@ std::string generate_large_json(int num_operations) {
   return json;
 }
 
-} // namespace weaseldb::test_data
+} // namespace weaseldb::test_data

benchmarks/test_data.hpp

@@ -55,4 +55,4 @@ extern const std::string COMPLEX_JSON;
  */
 std::string generate_large_json(int num_operations);
 
-} // namespace weaseldb::test_data
+} // namespace weaseldb::test_data