What were you trying to do that didn't work?

Running sos cleaner on an image-mode system, it's domain name is not cleaned up.

We need to backport https://github.com/sosreport/sos/pull/4026 that fixes it.

What is the impact of this issue to you?

Private data leak from customers can happen.

Please provide the package NVR for which the bug is seen:

sos-4.8.2

How reproducible is this bug?:

100%

Steps to reproduce

1. Have an image-mode system (technically a system where 1) `hostname` returns shortname only, 2) `hostname -f` returns FQDN and 3) `/etc/hosts` is almost empty).
2. Run `sos report -o host, networking --clean --batch --build` on it
3. Check that domain name of the host was not obfuscated - just shortname was

Expected results

Domain name obfuscated along with its shortname in the obfuscated report

Actual results

Domain name still present in the obfuscated report