##### 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
```

'''
    This class represents one rule as defined in a line in a PgHbaFile.
    '''
    def __init__(self, contype=None, databases=None, users=None, source=None, netmask=None,
                 method=None, options=None, line=None):
        '''
        This function can be called with a comma seperated list of databases and a comma seperated
        list of users and it will act as a generator that returns a expanded list of rules one by
        one.
        '''
        super(PgHbaRule, self).__init__()
        if line:
            
            self.fromline(line)
        
        rule = dict(zip(PG_HBA_HDR, [contype, databases, users, source, netmask, method, options]))