##### 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
```

if isinstance(args, (binary_type, text_type)):
                
                
                if PY2:
                    args = to_bytes(args, errors='surrogate_or_strict')
                elif PY3:
                    args = to_text(args, errors='surrogateescape')
                args = shlex.split(args)
            
            if expand_user_and_vars:
                args = [to_bytes(os.path.expanduser(os.path.expandvars(x)), errors='surrogate_or_strict') for x in args if x is not None]
            else:
                args = [to_bytes(x, errors='surrogate_or_strict') for x in args if x is not None]
        prompt_re = None
        if prompt_regex:
            if isinstance(prompt_regex, text_type):
                if PY3:
                    prompt_regex = to_bytes(prompt_regex, errors='surrogateescape')
                elif PY2:
                    prompt_regex = to_bytes(prompt_regex, errors='surrogate_or_strict')
            try:
                prompt_re = re.compile(prompt_regex, re.MULTILINE)
            except re.error:
                self.fail_json(msg="invalid prompt regular expression given to run_command")
        rc = 0
        msg = None
        st_in = None
        
        old_env_vals = {}