Comment # 1 on bug 1217852 from Franck Bui

Given that "sysusers-tools" depends on "sysuser-shadow", which provides
/usr/sbin/sysusers2shadow script only and this script is either duplicating the
functionality of systemd-sysusers (only partially) or just calling
systemd-sysusers if it's installed, using "BuildRequires:  sysuser-tools" would
be strange.

Even "sysusers-tools" duplicates the functionality of
`%sysusers_create_package()` macro provided by systemd-rpm-macros...

I don't know why this is needed. If it's a matter of dependencies, we could
provide a standalone version of systemd-sysusers that wouldn't depend on
systemd.

Anyway I'll probably go with "Provides: group(systemd-journal)".