message: Use common thread pool for text parsing (TRIVIAL)
diff: @@ -264,7 +264,7 @@ void forEachLineBlock(std::istream & stream,
  std::atomic<int64_t> byteOffset(0);
  std::atomic<int> chunkNumber(0);
  - ThreadPool tp(maxParallelism);
  + ThreadPool tp(ThreadPool::instance(), maxParallelism);
  // Memory map if possible
  const char * mapped = nullptr;
  