### Summary

The "test_copy.py" module has a bit shifted in the "dir all perms" example under "Info helpful for making new test cases", and also has a misplaced comma.

### Issue Type

Documentation Report

### Component Name

test/units/modules/test_copy.py

### Ansible Version

```console
$ ansible --version
ansible [core 2.16.0.dev0] (fix_test_doc a84b3a4e72) last updated 2023/04/08 10:56:13 (GMT -600)
  config file = None
  configured module search path = ['/home/sean/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/sean/software/ansible-realgo/lib/ansible
  ansible collection location = /home/sean/.ansible/collections:/usr/share/ansible/collections
  executable location = bin/ansible
  python version = 3.10.6 (main, Mar 10 2023, 10:55:28) [GCC 11.3.0] (/usr/bin/python3)
  jinja version = 3.0.3
  libyaml = True
```


### Configuration

```console
# if using a version older than ansible-core 2.12 you should omit the '-t all'
$ ansible-config dump --only-changed -t all
CONFIG_FILE() = None
EDITOR(env: EDITOR) = lvim
```


### OS / Environment

N/A

### Additional Information

PR incoming, diff goes into the details.

### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
mocker.patch('os.path.exists', side_effect=[True, False, False])
    split_pre_existing_dir(directory) == expected
@pytest.mark.parametrize('directory', (d[0] for d in ONE_DIR_DATA if d[1] is None))
def test_split_pre_existing_dir_root_does_not_exist(directory, mocker):
    mocker.patch('os.path.exists', return_value=False)
    with pytest.raises(AnsibleModuleError) as excinfo:
        split_pre_existing_dir(directory)
    assert excinfo.value.results['msg'].startswith("The '/' directory doesn't exist on this machine.")
@pytest.mark.parametrize('directory, expected', ((d[0], d[1]) for d in ONE_DIR_DATA if not d[0].startswith('/')))
def test_split_pre_existing_dir_working_dir_exists(directory, expected, mocker):
    mocker.patch('os.path.exists', return_value=False)
    split_pre_existing_dir(directory) == expected
#
#
#
#
DATA = (  
    (0o040000, u'a+rwx', 0o0777),
    (0o040000, u'u+rwx,g+rwx,o+rwx', 0o0777),
    (0o040000, u'o+rwx', 0o0007),
    (0o040000, u'g+rwx', 0o0070),
    (0o040000, u'u+rwx', 0o0700),
    
    (0o040777, u'a-rwx', 0o0000),
    (0o040777, u'u-rwx,g-rwx,o-rwx', 0o0000),
    (0o040777, u'o-rwx', 0o0770),
    (0o040777, u'g-rwx', 0o0707),
    (0o040777, u'u-rwx', 0o0077),
    
    (0o040000, u'a=rwx', 0o0777),