[SECURITY] Fedora 28 Update: yum-utils-1.1.31-515.fc28

yum-utils is a collection of utilities and examples for the yum package manager. It includes utilities by different authors that make yum easier and more powerful to use. These tools include: debuginfo-install, find-repos-of-install, needs-restarting, package-cleanup, repoclosure, repodiff, repo-graph, repomanage, repoquery, repo-rss, reposync, repotrack, show-installed, show-changed-rco, verifytree, yumdownloader, yum-builddep, yum-complete-transaction, yum-config-manager, yum-debug-dump, yum-debug-restore and yum-groups-manager.