message: clang plugin: the messages before getline should be clipped out
diff: @@ -225,7 +225,7 @@ bool parallel::emitOutput() {
  */
  stringstream new_ss;
  new_ss << line << '\n';
  - new_ss << parent_ss.str();
  + new_ss << move(parent_ss).str().substr(parent_ss.tellg());
  parent_ss.swap(new_ss);
  return false;
  }
  