##### SUMMARY
The following modules throw a `[WARNING]: Found internal 'results' key in module return, renamed to 'ansible_module_results'`:

* [ ]  `vmware_datastore_maintenancemode`
* [ ]  `vmware_host_kernel_manager`
* [ ]  `vmware_host_ntp`
* [ ]  `vmware_host_service_manager`
* [ ]  `vmware_tag`

I've generated the list like this:

`cd lib/ansible/modules/cloud/vmware/ && grep exit_json *.py | grep results= | cut -d ':' -f 1 | cut -d '.' -f 1`

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
vmware

##### ANSIBLE VERSION
`devel`
task = storage_replacement_result.task
                else:
                    task = datastore.DatastoreExitMaintenanceMode_Task()
                success, result = wait_for_task(task)
                if success:
                    changed = True
                    if self.state == 'present':
                        datastore_results[datastore.name] = "Datastore '%s' entered in maintenance mode." % datastore.name
                    else:
                        datastore_results[datastore.name] = "Datastore '%s' exited from maintenance mode." % datastore.name
            except vim.fault.InvalidState as invalid_state:
                if self.state == 'present':
                    msg = "Unable to enter datastore '%s' in" % datastore.name
                else:
                    msg = "Unable to exit datastore '%s' from" % datastore.name
                msg += " maintenance mode due to : %s" % to_native(invalid_state.msg)
                self.module.fail_json(msg=msg)
            except Exception as exc:
                if self.state == 'present':
                    msg = "Unable to enter datastore '%s' in" % datastore.name
                else:
                    msg = "Unable to exit datastore '%s' from" % datastore.name
                msg += " maintenance mode due to generic exception : %s" % to_native(exc)
                self.module.fail_json(msg=msg)
            change_datastore_list.append(changed)
        changed = False
        if any(change_datastore_list):
            changed = True
        self.module.exit_json(changed=changed, results=datastore_results)
def main():