A virt-who bugfix update has been released for CentOS 7.

CentOS-announce: CEBA-2020:5444 CentOS 7 virt-who BugFix Update

CentOS Errata and Bugfix Advisory 2020:5444

Upstream details at :   https://access.redhat.com/errata/RHBA-2020:5444

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
4bcba3242efbe299d1cca855971a52ac841ce3d6656543283cb9ff8dfd08b70d virt-who-0.28.10-1.el7_9.noarch.rpm

Source:
b11ce61af35ce53ea26b23ba08642374a77780a83c62e82e3896ad94685e9914 virt-who-0.28.10-1.el7_9.src.rpm