##### 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
```

type: str
    aliases: [ source, src ]
  backup:
    description:
      - If set, create a backup of the C(pg_hba) file before it is modified.
        The location of the backup is returned in the (backup) variable by this module.
    default: false
    type: bool
  backup_file:
    description:
      - Write backup to a specific backupfile rather than a temp file.
    type: str
  create:
    description:
      - Create an C(pg_hba) file if none exists.
      - When set to false, an error is raised when the C(pg_hba) file doesn't exist.
    default: false
    type: bool
  contype:
    description:
      - Type of the rule. If not set, C(postgresql_pg_hba) will only return contents.
    type: str
    choices: [ local, host, hostnossl, hostssl ]
  databases:
    description:
      - Databases this line applies to.
    default: all
    type: str
  dest:
    description: