warning when truncating username in test

[Rico Lin]

Warning when truncating username in test
The warning message in log:
2017-04-24 07:53:33.473 799 WARNING heat.engine.clients.keystoneclient [req-bfc7b01c-7294-45f2-b75e-f44d6f2f137d 92f31b926b844df994019d797be303ee b8b39845ef4b45f18e15b6eeb3750784 - - -] Truncating the username AutoscalingGroupBasicTest-699249161-JobServerGroup-fny64twqg46a-bpmomyguluzb-jiojcmvuej3h-ready_poster-ntw3albkcy7d to the last 64 characters.

We should avoid the warning
Since truncating to 64 characters might lose some information in name

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/459386

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/459386
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=a41b5cf5eb2fcb3ab999c2eaee0838d5ca10f6e6
Submitter: Jenkins
Branch: master

commit a41b5cf5eb2fcb3ab999c2eaee0838d5ca10f6e6
Author: ricolin <email address hidden>
Date: Mon Apr 24 23:51:09 2017 +0800

    Change user name limit to 255 characters

    Origin user name limit in heat is 64 characters. but the max acceptable
    username limit should be 255 in keystone.
    This patch propose to change the limit to 255
    Also, this can avoid warning from heat keystone client in heat
    integration tests.
    Closes-Bug: #1685817

    Change-Id: I7b9e7076bd700c086b07f13dadf89531579aa4a1

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/heat 9.0.0.0b2 development milestone.