Pass $HOME to ansible-lint in tox
Pass $HOME to ansible-lint in tox

Previously when we execute ansible-lint via tox, we didn't pass
$HOME to ansible-lint. This causes ansible-lint to create an
empty directory named '$HOME' after execution.

This patch let tox to pass $HOME to ansible-lint, to prevent it
from creating the unnecessory and dangerous directory.

Closes-bug: #1626637
Change-Id: Ieb8f16908e623b103ec68b595231e8b45e482ad6

openstack/storlets,openstack/storlets,openstack/storlets,openstack/storlets