Add command line arguments about e3sm_diags HOT 4 CLOSED

(workflow) -bash-4.1$ acme_diags_driver.py 
Traceback (most recent call last):
  File "/export/baldwin32/anaconda2/envs/workflow/bin/acme_diags_driver.py", line 4, in <module>
    __import__('pkg_resources').run_script('acme-diags==0.1', 'acme_diags_driver.py')
  File "/export/baldwin32/anaconda2/envs/workflow/lib/python2.7/site-packages/pkg_resources/__init__.py", line 739, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/export/baldwin32/anaconda2/envs/workflow/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1494, in run_script
    exec(code, namespace, namespace)
  File "/export/baldwin32/anaconda2/envs/workflow/lib/python2.7/site-packages/acme_diags-0.1-py2.7.egg-info/scripts/acme_diags_driver.py", line 48, in <module>
    original_parameter = parser.get_parameter(default_vars=False)
  File "/export/baldwin32/anaconda2/envs/workflow/lib/python2.7/site-packages/cdp/cdp_parser.py", line 37, in get_parameter
    self._parameter.check_values()
  File "/export/baldwin32/anaconda2/envs/workflow/lib/python2.7/site-packages/acme_diags/acme_parameter.py", line 58, in check_values
    if self.reference_data_path == '':
AttributeError: 'ACMEParameter' object has no attribute 'reference_data_path'

if not args.config:
    parser.print_help()
    sys.exit()