Syntax: turnkey-lxc-info [-h] [-p|-u|-n]

Probes system for LXC priviledge level.

Options:
    -h|--help       - Show this help and exit
    -p|--is-priv    - exit 0 if privileged; otherwise 1
    -u|--is-unpriv  - exit 0 if unprivileged (inc nested); otherwise 1
    -n|--is-nested  - exit 0 if nested; otherwise 1

With no switch (and no error), it will exit 0 and output one of the
following:

    privileged      - if container is privileged
    unprivileged    - if container is unprivileged
    nested          - if container is nested (implies unprivileged too)

If a switch other than -h|--help is used, then there will be no text output
on stdout (stderr if any errors), exit code will be as noted above.

If not run within an LXC container, it will exit 1 with error message on
stderr. Running as root is recommended (but not strictly required).