Backport #27103 by @JakobDev Part of #27065 Co-authored-by: JakobDev <jakobdev@gmx.de> Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
Change all license headers to comply with REUSE specification. Fix #16132 Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github> Co-authored-by: John Olheiser <john.olheiser@gmail.com>