Add a test case for -h / --help command line argument for some CLI commands.
Add a test case for -h / --help command line argument for some CLI
commands.

StackStorm/st2,nzlosh/st2,Plexxi/st2,nzlosh/st2,nzlosh/st2,StackStorm/st2,nzlosh/st2,Plexxi/st2,Plexxi/st2,StackStorm/st2,Plexxi/st2,StackStorm/st2