message: Update qrcode.cpp
  Fixed issue QRDetect::searchHorizontalLines() boundary condition will skip the matched qrcode near the end
diff: @@ -200,7 +200,7 @@ vector<Vec3d> QRDetect::searchHorizontalLines()
  }
  }
  pixels_position.push_back(width_bin_barcode - 1);
  - for (size_t i = 2; i < pixels_position.size() - 4; i+=2)
  + for (size_t i = 2; i < pixels_position.size() - 3; i+=2)
  {
  test_lines[0] = static_cast<double>(pixels_position[i - 1] - pixels_position[i - 2]);
  test_lines[1] = static_cast<double>(pixels_position[i ] - pixels_position[i - 1]);
  