Replace union to create tcp-check list for redis
Replace union to create tcp-check list for redis

When using union, repeated arrays members are removed, so in this case
we are missing a 'expect string +ok' after the QUIT. To avoid that i'm
usinhg + operator to join arrays.

Change-Id: I8f92469aa8dd0b8c21821b3ec62b2d43361ee428

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo