##### 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
```

"""Report weight when comparing users."""
        if self['usr'] == 'all':
            return 1000000
        return 1
def main():
    '''
    This function is the main function of this module
    '''
    
    argument_spec = dict()
    argument_spec.update(
        address=dict(type='str', default='samehost', aliases=['source', 'src']),
        backup_file=dict(type='str'),
        contype=dict(type='str', default=None, choices=PG_HBA_TYPES),
        create=dict(type='bool', default=False),
        databases=dict(type='str', default='all'),
        dest=dict(type='path', required=True),
        method=dict(type='str', default='md5', choices=PG_HBA_METHODS),
        netmask=dict(type='str'),
        options=dict(type='str'),
        order=dict(type='str', default="sdu", choices=PG_HBA_ORDERS),
        state=dict(type='str', default="present", choices=["absent", "present"]),
        users=dict(type='str', default='all')
    )
    module = AnsibleModule(