This bug was initially created as a copy of Bug #2095457

I am copying this bug because: 

It needs to get into Fedora first before implementing it in RHEL9.


Description of problem:
radvd uses static useradd scripts

Version-Release number of selected component (if applicable):
 	radvd-2.19-4.el9

How reproducible:
100%

Steps to Reproduce:
1.review %pre
2.
3.

Actual results:
# Static UID and GID defined by /usr/share/doc/setup-*/uidgid
%pre
getent group radvd >/dev/null || groupadd -r -g 75 radvd
getent passwd radvd >/dev/null || \
  useradd -r -u 75 -g radvd -d / -s /sbin/nologin -c "radvd user" radvd
exit 0

Expected results:
use of system-sysusers 

Additional info:
https://www.freedesktop.org/software/systemd/man/systemd-sysusers.html
https://fedoraproject.org/wiki/Changes/Adopting_sysusers.d_format