[build.webkit.org] Rename BUILD_WEBKIT_URL to CURRENT_HOSTNAME, since BUILD_WEBKIT_URL is a misleading name, it actually stores the current hostname.
Created attachment 413331 [details] Patch
Committed r269469: <https://trac.webkit.org/changeset/269469> All reviewed patches have been landed. Closing bug and clearing flags on attachment 413331 [details].
<rdar://problem/71090411>