When --watch is used, --quiet works. For old-style call without options it could be confusing that runroot.log is still written to output. It probably makes sense to honour it also there.
runroot.log
PR #806
Metadata Update from @tkopecek: - Issue set to the milestone: 1.16
seems reasonable
Commit 8cfb6032 fixes this issue
Commit eaa158ab fixes this issue
This issue has been migrated to Fedora Forge: https://forge.fedoraproject.org/koji/koji/issues/807
Please continue any further discussion there.