yum in Fedora is now a script that prints an ugly warning and then calls dnf. To avoid this warning, let's try dnf first if present, and if not then fall back to yum.
This means dnf will be used if present on older versions of Fedora, but I doubt this will cause any issues.
Created attachment 250202 [details]
Comment on attachment 250202 [details]
Clearing flags on attachment: 250202
Committed r182441: <http://trac.webkit.org/changeset/182441>
All reviewed patches have been landed. Closing bug.