Description
===========
'pacemaker-status' validation always reports PASSED regardless of the actual status of pacemaker service

Steps to reproduce
==================
Stop pacemaker service on ctrl node and run validation
~~~
[root@controller-0 ~]# systemctl status pacemaker                                                                                                                                                                                                                                         
● pacemaker.service - Pacemaker High Availability Cluster Manager
   Loaded: loaded (/usr/lib/systemd/system/pacemaker.service; enabled; vendor preset: disabled)
   Active: inactive (dead) since Wed 2021-09-01 12:57:12 UTC; 6s ago
     Docs: man:pacemakerd
           https://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/2.0/html-single/Pacemaker_Explained/index.html
  Process: 23625 ExecStart=/usr/sbin/pacemakerd -f (code=exited, status=0/SUCCESS)
 Main PID: 23625 (code=exited, status=0/SUCCESS)

(undercloud) [stack@undercloud-0 ~]$ openstack tripleo validator run --validation pacemaker-status
Running Validations without Overcloud settings.
+--------------------------------------+------------------+--------+------------+----------------+-------------------+-------------+
|                 UUID                 |   Validations    | Status | Host_Group | Status_by_Host | Unreachable_Hosts |   Duration  |
+--------------------------------------+------------------+--------+------------+----------------+-------------------+-------------+
| e5cf056f-f411-4a6c-902a-862f2af44b28 | pacemaker-status | PASSED | Controller |  controller-0  |                   | 0:00:00.715 |
+--------------------------------------+------------------+--------+------------+----------------+-------------------+-------------+
(undercloud) [stack@undercloud-0 ~]$ 
~~~

Expected result
===============
Validation should've been reported as failed

Actual result
=============
Validation was reported as passed, meaning pacemaker service is active

Environment
===========
Red Hat OpenStack Platform release 16.1.6 GA (Train)

Logs & Configs
==============
Ansible reports the service as inactive in validation logs
~~~
                            "delta": "0:00:00.014623",
                            "end": "2021-09-01 12:57:46.081054",
                            "invocation": {
                                "module_args": {
                                    "_raw_params": "/usr/bin/systemctl show pacemaker --property ActiveState",
                                    "_uses_shell": false,
                                    "argv": null,
                                    "chdir": null,
                                    "creates": null,
                                    "executable": null,
                                    "removes": null,
                                    "stdin": null,
                                    "stdin_add_newline": true,
                                    "strip_empty_ends": true,
                                    "warn": true
                                }
                            },
                            "ok": true,
                            "rc": 0,
                            "start": "2021-09-01 12:57:46.066431",
                            "stderr": "",
                            "stderr_lines": [],
                            "stdout": "ActiveState=inactive",   <<<<<<<<<<
                            "stdout_lines": [
                                "ActiveState=inactive"
                            ]
                        }
                    },
~~~