message: [contour] OpenGLRenderer: Fixing compile error on Ubuntu 18.04.
diff: @@ -837,13 +837,12 @@ void OpenGLRenderer::setBackgroundImage(shared_ptr<terminal::BackgroundImage con
  if (backgroundImage.blur)
  {
  - auto const offsetStr = qEnvironmentVariable("CONTOUR_BLUR_OFFSET");
  - auto const iterStr = qEnvironmentVariable("CONTOUR_BLUR_ITERATIONS");
  - auto const offset = offsetStr.isEmpty() ? 5 : offsetStr.toInt();
  - auto const iterations = iterStr.isEmpty() ? 5 : iterStr.toInt();
  auto const contextGuard = OpenGLContextGuard {};
  -
  auto blur = Blur {};
  + // auto const offsetStr = qgetenv("CONTOUR_BLUR_OFFSET").toStdString();
  + // auto const iterStr = qgetenv("CONTOUR_BLUR_ITERATIONS").toStdString();
  + // auto const offset = offsetStr.empty() ? 5 : std::stoi(offsetStr);
  + // auto const iterations = iterStr.empty() ? 5 : std::stoi(iterStr);
  // qImage = blur.blurDualKawase(move(qImage), offset, iterations);
  qImage = blur.blurGaussian(move(qImage));
  