##### 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 130
        sourceobj = self.source()
        if isinstance(sourceobj, ipaddress.IPv4Network):
            return sourceobj.prefixlen * 4
        if isinstance(sourceobj, ipaddress.IPv6Network):
            return sourceobj.prefixlen
        if isinstance(sourceobj, str):
            
            
            
            if sourceobj == 'all':
                
                return 0
            if sourceobj == 'samehost':
                
                return 129
            if sourceobj == 'samenet':
                
                
                
                return 96
            if sourceobj[0] == '.':
                
                
                return 64
            
            
            return 128
        raise PgHbaValueError('Cannot deduct the source weight of this source {1}'.format(sourceobj))
    def source_type_weight(self):