'postfix.log' isn't present in diagnostic snapshot

[Tatyana Kuterina]

Detailed bug description:
Found on CI:
https://product-ci.infra.mirantis.net/job/9.x.system_test.ubuntu.multirole/30/console

Test: Deploy cluster in HA mode with multi-role controller and cinder
Test Group: deploy_multirole_controller_cinder

Steps to reproduce:
Run fuel-qa test with group - deploy_multirole_controller_cinder

Expected results:
    test passed
Actual results:
    test failed

AssertionError: Next logs aren't present in snapshot logs ['/var/dump/fuel-snapshot-2016-08-16_23-44-09/nailgun.test.domain.local/var/log/remote/node-2.test.domain.local/postfix.log']

Reproducibility:
    occasionally

Description of the environment:
    9.1 snapshot #145

https://drive.google.com/a/mirantis.com/file/d/0Bz15vbpS5ZPNNllkbFMwcXM1LTA/view?usp=sharing

[Maksim Malchuk (mmalchuk)]

Invalid in 10.0 due to switch to Xenial : https://review.openstack.org/#/c/342932/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/356452

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/356452
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=4bc7788249ea4f1a9c8f0abd6e8e83a7475b98ab
Submitter: Jenkins
Branch: stable/mitaka

commit 4bc7788249ea4f1a9c8f0abd6e8e83a7475b98ab
Author: Maksim Malchuk <email address hidden>
Date: Wed Aug 17 16:02:38 2016 +0300

    Update expected postfix logs

    This change removes useless logfile record because all postfix logs
    resides inside the postfix directory.

    Change-Id: I47f8745d99014403c320e01f55da21581dbf1760
    Closes-Bug: #1614016
    Related-Bug: #1606900
    Signed-off-by: Maksim Malchuk <email address hidden>

[Tatyana Kuterina (tkuterina)]

Verified on 9.1 snapshot #149

FUEL_QA_COMMIT=6e1902cb46756bfe2f047d300e83c3ad08ec1df7