Description of problem:

Version-Release number of selected component (if applicable):
Satellite 6.11 @ RHEL7
RHEL 8

Steps to Reproduce:
1. On Satellite 6.11 on RHEL 7 create backup:
]# satellite-maintain backup offline --skip-pulp-content /var/backup

2. On fresh build RHEL 8 make /backup to move the above back to
]# mkdir /backup
]# ls /backup
config_files.tar.gz metadata.yml pgsql_data.tar.gz

3. On fresh RHEL8 register to Customer Portal and enable repositories:
]# subscription-manager repos --enable=rhel-8-for-x86_64-baseos-rpms \
--enable=rhel-8-for-x86_64-appstream-rpms \
--enable=satellite-6.11-for-rhel-8-x86_64-rpms \
--enable=satellite-maintenance-6.11-for-rhel-8-x86_64-rpms
]# dnf module enable satellite:el8

4. Install satellite-clone:
]# dnf -y install satellite-lcone

5. Run satellite-clone

Actual results:
After satellite-clone finishes /etc/hosts looks as follows where FQDN is in the 127.0.0.1 localhosts line:

]# cat /etc/hosts
127.0.0.1 EXAMPLE.SATELLITE.FQDN localhost.localdomain localhost4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

Expected results:
]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
aa.bb.ccc.ddd EXAMPLE.SATELLITE.FQDN

Additional info:
This occurs when using satellite-clone in process described in RFE 2231191
https://bugzilla.redhat.com/show_bug.cgi?id=2231191