[VirtualBox-kmod/el7] (8 commits) ...Merge branch 'master' into el7

Summary of changes: 729a728... simplify filename and avoid a weird problem on rpm of F28 (*) ae7a20d... VirtualBox 6.0 (*) 45d43a4... Update to 6.0.2. (*) 2efdc6b... Update to 6.0.4 (*) 0d16ad7... Fixes for upcoming kernel 5.1 and update of new vboxsf (*) d5e07f0... - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass (*) 40f66d7... Rebase and squash el7 eb5dd49... Merge branch 'master' into el7 (*) This commit already existed in another branch; no separate mail sent