##### 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
```

SEQUENCETYPE = frozenset, KeysView, Sequence
PASSWORD_MATCH = re.compile(r'^(?:.+[-_\s])?pass(?:[-_\s]?(?:word|phrase|wrd|wd)?)(?:[-_\s].+)?$', re.I)
imap = map
try:
    
    unicode
except NameError:
    
    unicode = text_type
try:
    
    basestring
except NameError:
    
    basestring = string_types
_literal_eval = literal_eval
_ANSIBLE_ARGS = None
FILE_COMMON_ARGUMENTS = dict(
    
    
    
    mode=dict(type='raw'),
    owner=dict(),
    group=dict(),
    seuser=dict(),
    serole=dict(),
    selevel=dict(),
    setype=dict(),
    attributes=dict(aliases=['attr']),