##### 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
```

r_files['symlinks'].append((os.readlink(dirpath), dest_dirpath))
                            else:
                                
                                r_files['directories'].append((real_dir, dest_dirpath))
                                offset = len(real_dir) + 1
                                _recurse(real_dir, offset, parent_dirs.union(new_parents), rel_base=dest_dirpath)
                    else:
                        
                        r_files['symlinks'].append((os.readlink(dirpath), dest_dirpath))
                else:
                    
                    r_files['directories'].append((dirpath, dest_dirpath))
    
    
    source_trailing_slash = False
    if trailing_slash_detector:
        source_trailing_slash = trailing_slash_detector(topdir)
    else:
        source_trailing_slash = topdir.endswith(os.path.sep)
    
    
    if base_path is None:
        base_path = topdir
    if not source_trailing_slash:
        base_path = os.path.dirname(base_path)
    if topdir.startswith(base_path):
        offset = len(base_path)