message: matinfo: fix feature level print output
diff: @@ -98,7 +98,7 @@ static bool printMaterial(ostream& text, const ChunkContainer& container) {
  uint8_t featureLevel;
  if (read(container, MaterialFeatureLevel, &featureLevel)) {
  text << " " << setw(alignment) << left << "Feature level: ";
  - text << featureLevel << endl;
  + text << +featureLevel << endl;
  }
  CString name;
  