Please make a separate RFE that reflects #3. This will not be changed in the 8.0.0 time frame.
There is a bug already that covers removing the env config references from the documentation and files. https://bugzilla.redhat.com/show_bug.cgi?id=1657104
The answer for this issue is to change over to the configuration files for each fabric in /etc/virt-who.d/*.conf. That is the designed method go forward.
Closing as WONTFIX
Hi William, thanks for your reply, I have opened a new RFE bug based on #3 for RHEL7.7: https://bugzilla.redhat.com/show_bug.cgi?id=1658440
I'm still a little worried about this issue, customer will meet with the confused error message if configure virt-who in /etc/sysconfig/virt-who as usual.