Description of problem:

auth (or authconfig) kickstart command was deprecated in RHEL8 [1].
RHEL8 installation automatically uses authconfig command provided by authselect package. It's good. 

But, the deprecation message of the auth (or authconfig) command should be logged into anywhere. Other deprecated commands (like "install") generate KickstartDeprecationWarning in /tmp/anaconda.log.


[1] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/performing_an_advanced_rhel_installation/kickstart-commands-and-options-reference_installing-rhel-as-an-experienced-user

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux 8.1

How reproducible:
Always

Steps to Reproduce:
1. Install RHEL8 with a kickstart including authconfig command.

Actual results:
It doesn't generate any warning for the deprecated auth (or authconfig) command.

Expected results:
It generates a warning for the deprecated auth (or authconfig) command.

Additional info:
inst.ksstrict doesn't affect for auth (or authconfig) command.