Create container with --wait option break output formatting

[hongbin]

It is a quite common scenario to create a container and retrieve its UUID in script. For example,

  $ openstack appcontainer run -f value -c uuid nginx
  7271e788-3008-4960-ba44-84854230e560

The output above is the UUID of the created container. However, we cannot do the same with the "--wait" option:

  $ openstack appcontainer run -f value -c uuid --wait nginx
  Complete to run container.

  809eabaa-aa92-4ae0-9c13-c563e1d0c517

There is an extra line printed on the output.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/631941

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/631941
Committed: https://git.openstack.org/cgit/openstack/python-zunclient/commit/?id=fbc4029bf28be1373faa2989b821b7eaadb51e33
Submitter: Zuul
Branch: master

commit fbc4029bf28be1373faa2989b821b7eaadb51e33
Author: Hongbin Lu <email address hidden>
Date: Sat Jan 19 21:08:20 2019 +0000

    Don't print extra output on waiting

    Change-Id: I246b864254fedd2a42f0fef34c53d2a28b92889e
    Closes-Bug: #1812518

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-zunclient 3.3.0 release.