License unknown for fb55/domutils

[phpfs]

Dear @mwittig,

thank you for bringing this package to life :)

While we were able to correctly identify licenses for about a thousand of npm packages, a single repository returned unknown.
For https://github.com/fb55/domutils, this library fails to correctly recognize the "BSD-2-Clause" and instead return "unknown". Can we fix this easily? Is this a known limitation?

Thank you very much!