##### SUMMARY
pacman contains call to Display.deprecated or AnsibleModule.deprecate and is scheduled for removal

```
lib/ansible/modules/packaging/os/pacman.py:456:8: ansible-deprecated-version: Deprecated version ('2.10') found in call to Display.deprecated or AnsibleModule.deprecate
```

##### ISSUE TYPE
 - Bug Report

##### COMPONENT NAME
```
lib/ansible/modules/packaging/os/pacman.py
```

##### ANSIBLE VERSION
```
2.10
```

##### CONFIGURATION
N/A

##### OS / ENVIRONMENT
N/A

##### STEPS TO REPRODUCE
N/A

##### EXPECTED RESULTS
N/A

##### ACTUAL RESULTS
N/A

would_be_changed = []
    diff = {
        'before': '',
        'after': '',
        'before_header': '',
        'after_header': ''
    }
    for package in packages:
        installed, updated, unknown = query_package(module, pacman_path, package)
        if ((state in ["present", "latest"] and not installed) or
                (state == "absent" and installed) or
                (state == "latest" and not updated)):
            would_be_changed.append(package)
    if would_be_changed:
        if state == "absent":
            state = "removed"
        if module._diff and (state == 'removed'):
            diff['before_header'] = 'removed'
            diff['before'] = '\n'.join(would_be_changed) + '\n'
        elif module._diff and ((state == 'present') or (state == 'latest')):
            diff['after_header'] = 'installed'
            diff['after'] = '\n'.join(would_be_changed) + '\n'
        module.exit_json(changed=True, msg="%s package(s) would be %s" % (
            len(would_be_changed), state), diff=diff)
    else:
        module.exit_json(changed=False, msg="package(s) already %s" % state, diff=diff)
def expand_package_groups(module, pacman_path, pkgs):