Resync to el8/pkg.sh

pkg.sh

@@ -532,6 +532,10 @@ elif [ "$step" == "qa" ]; then
       dep=${dep64}.all-installed-nvra.txt
     else
       dep=${dep64}.dependencies-${suf}.txt
+      if [ "${suf}" == "recursive-flat" ] && [ "${brn}" == "el8" ]; then
+        echo "WARNING! 'repoquery --tree-requires' is not supported on CentOS8"
+        continue
+      fi
     fi
     url=https://gitlab.cern.ch/${prj}/builds/artifacts/${tag}-testing/raw/build/${dep}?job=deploy_job
     echo Retrieving ${url}