Comment 2 for bug 1496778

Reviewed: https://review.openstack.org/224550
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=6c1be9b93153de6ad9e2a008d94c5d5ed6087946
Submitter: Jenkins
Branch: master

commit 6c1be9b93153de6ad9e2a008d94c5d5ed6087946
Author: Mehdi Abaakouk <email address hidden>
Date: Thu Sep 17 11:57:51 2015 +0200

    Use make_sample_from_instance for net-pollster

    The net-pollster doesn't have the same metadata than other pollster.

    This change fixes that.

    Also the test is modified because if the metering metadata is already
    present in instance metadata they are filtered out.

    Change-Id: I50676067636ad01599f9dd5f0c31071b86f1466c
    Closes-bug: #1496778