User-Agent:       Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML,
like Gecko) Chrome/72.0.3626.109 Safari/537.36
Build Identifier: 

Setting
security_driver = "apparmor"
in /etc/libvirt/qemu.conf or enabling apparmor individually per domain leads to
error with libvirt 5:
Security driver apparmor not enabled


Reproducible: Always

Steps to Reproduce:
1. Set apparmor as security driver in /etc/libvirt/qemu.conf .
2. Use libvirt to start QEMU domain.
Actual Results:  
Error:
Security driver apparmor not enabled
Failed to initialize security drivers
Initialization of QEMU state driver failed: internal error: Failed to
initialize security drivers

Expected Results:  
Domain would start and be confined by AppArmor as it used to be before libvirt
5.