Description of problem
======================

Python module argparse is used in a wrong way. On rhel 6 machines, this leads
to ugly warning being displayed every time gdeploy command is run.

Version-Release number of selected component (if applicable)
============================================================

gdeploy-1.0-12.el6rhs.noarch
python-2.6.6-64.el6.x86_64
python-argparse-1.2.1-2.1.el6.noarch

How reproducible
================

100 %

Steps to Reproduce
==================

On RHEL 6 Gluster Storage Server machnie, try to use gdeploy tool, eg:

 * gdeploy -h
 * gdeploy --version

Actual results
==============

Python module argparse complains about wrong usage of it's api:

~~~
# gdeploy -h
/usr/lib/python2.6/site-packages/argparse.py:1575: DeprecationWarning: The "version" argument to ArgumentParser is deprecated. Please use "add_argument(..., action='version', version="N", ...)" instead
  """instead""", DeprecationWarning)
usage: gdeploy [-h] [-v] [-vv] [-c CONFIG_FILE] [-k] [volumeset <hostIP>:<volumename> <key> <value>]

positional arguments:
  volumeset       Set options for the volume

optional arguments:
  -h, --help      show this help message and exit
  -v, --version   show program's version number and exit
  -c CONFIG_FILE  Configuration file
  -k              Keep the generated ansible utility files
  -vv             verbose mode
~~~

~~~
# gdeploy --version
/usr/lib/python2.6/site-packages/argparse.py:1575: DeprecationWarning: The "version" argument to ArgumentParser is deprecated. Please use "add_argument(..., action='version', version="N", ...)" instead
  """instead""", DeprecationWarning)
1.0
~~~

Expected results
================

Python module argparse doesn't complain. So for example:

~~~
# gdeploy --version
gdeploy 1.0
~~~