##### 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
```

return mode | user_perms_to_modes[user][perm]
        return reduce(or_reduce, perms, 0)
    def set_fs_attributes_if_different(self, file_args, changed, diff=None, expand=True):
        
        changed = self.set_context_if_different(
            file_args['path'], file_args['secontext'], changed, diff
        )
        changed = self.set_owner_if_different(
            file_args['path'], file_args['owner'], changed, diff, expand
        )
        changed = self.set_group_if_different(
            file_args['path'], file_args['group'], changed, diff, expand
        )
        changed = self.set_mode_if_different(
            file_args['path'], file_args['mode'], changed, diff, expand
        )
        changed = self.set_attributes_if_different(
            file_args['path'], file_args['attributes'], changed, diff, expand
        )
        return changed
    def check_file_absent_if_check_mode(self, file_path):
        return self.check_mode and not os.path.exists(file_path)
    def set_directory_attributes_if_different(self, file_args, changed, diff=None, expand=True):
        return self.set_fs_attributes_if_different(file_args, changed, diff, expand)
    def set_file_attributes_if_different(self, file_args, changed, diff=None, expand=True):