Unit test for cliargs module
Unit test for cliargs module

This patch adds unit test cases for the cliargs module.

Change-Id: Ia45f15abd5c5da5d1ecbbbecf7f775cf5ededb83

stackforge/python-senlinclient,openstack/python-senlinclient,stackforge/python-senlinclient,openstack/python-senlinclient