Possible values:
parent
: forces headers to use\H
parent
argument to specify their levelnumber
: forces headers to not use\H
parent
argument to specify their level, i.e. to use a number or a number of=
You should basically always set either one of those on any serious project. Forgetting a
parent=
in a project that uses parent=
everywhere else is a common cause of build bugs, and can be hard to debug without this type of linting enabled.