This should not be necessary. "normalize=1" should only be used on tests that we can't edit, like the tests from markdown.pl. If you are having trouble reproducing the correct output by hand, use the test framework's test generator. It will take the txt file as input and write the html file for you. The following commands should do the trick:

```bash
touch tests/extensions/extra/raw-html.txt
make update-tests
```

That will cycle through all tests and update any in which the last-modified-time is later for the txt file that the html file. If you want to only generate a specific file you can do that as well:

```bash
make update-tests tests/extensions/extra/raw-html.txt
```