The formatter does not recognize some unclosed tags

[julien-langlois]

I am currently working on a Drupal theme derived from the Bootstrap 3 theme. This one implements several tags in order to insert the different JavaScript and CSS.

However, the formatter does not recognize its tags and as they are not closed, it considers them as a new hierarchy and increments the following lines.

I saw that there was an option to override this via PrettyDiff but I don't feel like it works. Is there a way to make the formatter understand that these are special non-closing tags and that they should not be indented?

Expected result:

Thanks.