Cgred service won't start if /etc/cgrules.conf is missing

Cgred service won't start if /etc/cgrules.conf is missing

By default, the /etc/cgrules.conf file contains only comments. If this is the case, the cgred service starts without problem. But if /etc/cgrules.conf file is empty or missing, the cgred service won't start, even this case is equivalent with the first one.

This patch allows the cgred service start even when the /etc/cgrules.conf files is empty, or missing.

Signed-off-by: Peter Schiffer <pschiffe@redhat.com>
Acked-by: Jan Safranek <jsafrane@redhat.com>
Acked-by: Ivana Hutarova Varekova <varekova@redhat.com>