message: Fix bug in parsing view port from command line
diff: @@ -488,9 +488,9 @@ namespace ospray {
  auto& ay = viewPortFromCmdLine->at.y;
  auto& az = viewPortFromCmdLine->at.z;
  - auto& ux = upVectorFromCmdLine.x;
  - auto& uy = upVectorFromCmdLine.y;
  - auto& uz = upVectorFromCmdLine.z;
  + auto& ux = viewPortFromCmdLine->up.x;
  + auto& uy = viewPortFromCmdLine->up.y;
  + auto& uz = viewPortFromCmdLine->up.z;
  auto& fov = viewPortFromCmdLine->openingAngle;
  