need gettext system package for msgfmt

[Mike Spreitzer]

In a recent DevStack install, unit testing Heat failed like this:

$ tox -e pep8
pep8 develop-inst-noop: /opt/stack/heat
pep8 runtests: commands[0] | flake8 heat bin/heat-api bin/heat-api-cfn bin/heat-api-cloudwatch bin/heat-engine bin/heat-manage contrib
pep8 runtests: commands[1] | /opt/stack/heat/tools/config/check_uptodate.sh
No handlers could be found for logger "heat.common.config"
pep8 runtests: commands[2] | /opt/stack/heat/tools/requirements_style_check.sh requirements.txt test-requirements.txt
pep8 runtests: commands[3] | bash -c find heat -type f -regex '.*\.pot?' -print0|xargs -0 -n 1 msgfmt --check-format -o /dev/null
xargs: msgfmt: No such file or directory
ERROR: InvocationError: "/bin/bash -c find heat -type f -regex '.*\\.pot?' -print0|xargs -0 -n 1 msgfmt --check-format -o /dev/null"
________________________________________________________ summary ________________________________________________________
ERROR: pep8: commands failed

In the operating system at hand (Ubuntu 14.04), msgfmt command comes from a system package (NOT a python package) named gettext. It should be listed in one of the compendiums of system packages that DevStack installs.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/109179

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/109179
Committed: https://git.openstack.org/cgit/openstack-dev/devstack/commit/?id=053364cf60a3fade888eccd53076d8088657486f
Submitter: Jenkins
Branch: master

commit 053364cf60a3fade888eccd53076d8088657486f
Author: galstrom21 <email address hidden>
Date: Wed Jul 23 21:59:40 2014 -0500

    Install gettext from apt on Trusty (Ubuntu 14.04)

    The binary 'msgfmt' is not installed as part of python-gettext for Trusty
    (Ubuntu 14.04), so gettext needs to be installed from apt.

    Change-Id: I415814559d82be453e978a0d92a0cdb38f105683
    Closes-Bug: 1331328