##### 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`
datastore_results = dict()
        change_datastore_list = []
        for datastore in self.datastore_objs:
            changed = False
            if self.state == 'present' and datastore.summary.maintenanceMode != 'normal':
                datastore_results[datastore.name] = "Datastore '%s' is already in maintenance mode." % datastore.name
                break
            elif self.state == 'absent' and datastore.summary.maintenanceMode == 'normal':
                datastore_results[datastore.name] = "Datastore '%s' is not in maintenance mode." % datastore.name
                break
            try:
                if self.state == 'present':
                    storage_replacement_result = datastore.DatastoreEnterMaintenanceMode()