Avoid shadowing outer info() func in modules.lxc.list_()

************* Module salt.modules.lxc
salt/modules/lxc.py:292: [W0621(redefined-outer-name), list_] Redefining name 'info' from outer scope (line 468)
Merge pull request #10352 from cvrebert/patch-1

Avoid shadowing outer info() func in modules.lxc.list_()