"copyrightidl" should just be "copyright" at the end of line 9.
Pull request: https://github.com/WebKit/WebKit/pull/6907
Committed 257146@main (e205a844146b): <https://commits.webkit.org/257146@main> Reviewed commits have been landed. Closing PR #6907 and removing active labels.
<rdar://problem/102788176>