We need to land this before https://bugs.webkit.org/show_bug.cgi?id=222393. --master-name is a defunct option.
<rdar://problem/74750838>
Created attachment 421543 [details] Patch
Committed r273500: <https://commits.webkit.org/r273500> All reviewed patches have been landed. Closing bug and clearing flags on attachment 421543 [details].