[pkg-apparmor] Bug#871953: apparmor: init script unconditionally uses systemd-detect-virt

[Guillem Jover]

Package: apparmor
Version: 2.11.0-10
Severity: normal

Hi!

The apparmor init script uses systemd-detect-virt unconditionally,
which is not available when systemd is not installed, and prints an
error message.

The program should be checked for its existence first before its
usage.

Thanks,
Guillem