##### 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
```

type: str
    choices: ['all', 'no', 'none', 'safe', 'urllib2', 'yes']
    default: safe
  creates:
    description:
      - A filename, when it already exists, this step will not be run.
    type: path
  removes:
    description:
      - A filename, when it does not exist, this step will not be run.
    type: path
  status_code:
    description:
      - A list of valid, numeric, HTTP status codes that signifies success of the request.
    type: list
    default: [ 200 ]
  timeout:
    description:
      - The socket level timeout in seconds
    type: int
    default: 30
  headers:
    description:
        - Add custom HTTP headers to a request in the format of a YAML hash. As
          of C(2.3) supplying C(Content-Type) here will override the header
          generated by supplying C(json) or C(form-urlencoded) for I(body_format).
    type: dict
    version_added: '2.1'
  validate_certs:
    description: