Python 3 changes for print statement cause breakages

[Bart Wensley]

Title
-----
Python 3 changes for print statement cause breakages

Brief Description
-----------------
The changes made in https://review.openstack.org/#/c/621512 made some changes for old style prints that avoided newline from this:
print "some string",
to this:
print("some string", end=" ")

The problem is that having a space in the end parameter makes a functional change and adds an extra space to the end of the string. This has already broken backup/restore (see https://bugs.launchpad.net/starlingx/+bug/1808417)

The author of https://review.openstack.org/#/c/621512 needs to go back and remove the space from the end parameter in every case where this was done.

Severity
--------
Provide the severity of the defect.
Critical

Steps to Reproduce
------------------
Backup/restore was broken. I'm not sure what else might be broken.

Expected Behavior
------------------
The change to support python 3 compatible print statements should not introduce any functional changes.

Actual Behavior
----------------
See above.

Reproducibility
---------------
Reproducible

System Configuration
--------------------
Any

Branch/Pull Time/Commit
-----------------------
See above

Timestamp/Logs
--------------
Not applicable.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/625790

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/625790
Committed: https://git.openstack.org/cgit/openstack/stx-config/commit/?id=05ae4ae6b6192e889d1074cd235edc36fd6a50b2
Submitter: Zuul
Branch: master

commit 05ae4ae6b6192e889d1074cd235edc36fd6a50b2
Author: Sun Austin <email address hidden>
Date: Tue Dec 18 10:12:02 2018 +0800

    replace end=' ' with end='' for print to file

    Closes-bug: 1808808

    Change-Id: I5ff170f9cafe754ea21e8a09f91a2be552eadb74
    Signed-off-by: Sun Austin <email address hidden>

[Ghada Khalil (gkhalil)]

Release gating - issue introduced by recent code changes in support of python3