Updated openstack/openstack
Project: openstack-dev/devstack  38417fc9e03524afa34873df261fb0dce3873d1e

Migrate from using glance image-list to openstackclient

Modify instance of `glance image-list` to `openstack image list`,
in an effort to migrate all commands to unified CLI.

Change-Id: Ieef661d209606e088fbf6a3a394f9a6577667618