##### 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
```

''' Load value from environment '''
    for arg in args:
        if arg in os.environ:
            return os.environ[arg]
    raise AnsibleFallbackNotFound
def missing_required_lib(library, reason=None, url=None):
    hostname = platform.node()
    msg = "Failed to import the required Python library (%s) on %s's Python %s." % (library, hostname, sys.executable)
    if reason:
        msg += " This is required %s." % reason
    if url:
        msg += " See %s for more info." % url
    msg += (" Please read module documentation and install in the appropriate location."
            " If the required library is installed, but Ansible is using the wrong Python interpreter,"
            " please consult the documentation on ansible_python_interpreter")
    return msg
class AnsibleFallbackNotFound(Exception):
    pass
class AnsibleModule(object):
    def __init__(self, argument_spec, bypass_checks=False, no_log=False,