##### SUMMARY
If a module sets `add_file_common_args=True` when calling `AnsibleModule`, all elements from [FILE_COMMON_ARGUMENTS](https://github.com/ansible/ansible/blob/e9d29b1fe4285d90d7a4506b80260a9e24c3bcea/lib/ansible/module_utils/basic.py#L229-L257) are included in the argument spec. The [files document fragment](https://github.com/ansible/ansible/blob/e9d29b1fe4285d90d7a4506b80260a9e24c3bcea/lib/ansible/plugins/doc_fragments/files.py#L15-L80) only documents a subset of them, though. Missing are:
 - src
 - follow
 - force
 - content
 - backup
 - remote_src
 - regexp
 - delimiter
 - directory_mode

Most module authors using `add_file_common_args=True` are probably not aware that their modules have these options as well.

I don't think these extra options should be added by default if `add_file_common_args=True` is specified.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
lib/ansible/module_utils/basic.py

##### ANSIBLE VERSION
```
devel
```

)
    module = AnsibleModule(
        argument_spec=argument_spec,
        add_file_common_args=True,
        mutually_exclusive=[['body', 'src']],
    )
    if module.params.get('thirsty'):
        module.deprecate('The alias "thirsty" has been deprecated and will be removed, use "force" instead', version='2.13')
    url = module.params['url']
    body = module.params['body']
    body_format = module.params['body_format'].lower()
    method = module.params['method'].upper()
    dest = module.params['dest']
    return_content = module.params['return_content']
    creates = module.params['creates']
    removes = module.params['removes']
    status_code = [int(x) for x in list(module.params['status_code'])]
    socket_timeout = module.params['timeout']
    dict_headers = module.params['headers']
    if not re.match('^[A-Z]+$', method):
        module.fail_json(msg="Parameter 'method' needs to be a single word in uppercase, like GET or POST.")
    if body_format == 'json':
        
        if not isinstance(body, string_types):
            body = json.dumps(body)
        if 'content-type' not in [header.lower() for header in dict_headers]:
            dict_headers['Content-Type'] = 'application/json'
    elif body_format == 'form-urlencoded':
        if not isinstance(body, string_types):
            try: