When WebKit its build from source repository instead of tarball we can print the SVN revision to be more precise about the version of WebKit
Created attachment 380215 [details] Patch
Comment on attachment 380215 [details] Patch Clearing flags on attachment: 380215 Committed r250722: <https://trac.webkit.org/changeset/250722>
All reviewed patches have been landed. Closing bug.
<rdar://problem/55983280>