message: shrink to fit
diff: @@ -203,6 +203,7 @@ ConfigurationError run_benchmarks(const BenchmarkConfiguration& configuration) {
  benchmark_indices.emplace_back(index);
  }
  }
  + benchmark_indices.shrink_to_fit();
  if (benchmark_indices.empty()) {
  return ConfigurationError::BenchmarkNotFound;
  }
  