ACK/APPLIED/CMNT: [ACT][PATCH] UBUNTU: SAUCE: ubuntu_lxc: destroy leftover container before tests

[Po-Hsu Lin]

Nice catch.
Maybe we can remove the code piece in the exercise script in the
future. With ignore_status set to True it will be fine even if
the reboot container does not exist.

Acked-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
Applied and pushed.


Thanks
Sam