Lxc-checkconfig error on EC2

Cgroup: enabled
Cgroup clone_children flag: enabled
Cgroup device: enabled
Cgroup sched: enabled
Cgroup cpu account: enabled
Cgroup memory controller: /usr/bin/lxc-checkconfig: 135: [: -ge: unexpected operator
/usr/bin/lxc-checkconfig: 135: [: -gt: unexpected operator
missing
Cgroup cpuset: enabled