##### 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 method can be used to find and remove a rule. It doesn't look for the exact rule, only
        the rule with the same key.
        '''
        keys = rule.key()
        try:
            del self.rules[keys]
            self.diff['before']['pg_hba'].append(rule.line())
        except KeyError:
            pass
    def get_rules(self, with_lines=False):
        '''
        This method returns all the rules of the PgHba object
        '''
        rules = sorted(self.rules.values())
        for rule in rules:
            ret = {}
            for key, value in rule.items():
                ret[key] = value
            if not with_lines:
                if 'line' in ret:
                    del ret['line']
            else:
                ret['line'] = rule.line()
            yield ret
    def render(self):