##### 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`
if operation == 'add':
                    new_ntp_servers = new_ntp_servers + ntp_servers_to_change
                elif operation == 'delete':
                    for server in ntp_servers_to_change:
                        if server in new_ntp_servers:
                            new_ntp_servers.remove(server)
            
            if self.verbose:
                message = self.build_changed_message(
                    ntp_servers_configured,
                    new_ntp_servers,
                    ntp_servers_to_change,
                    operation
                )
            ntp_config_spec = vim.host.NtpConfig()
            ntp_config_spec.server = new_ntp_servers
            date_config_spec = vim.host.DateTimeConfig()
            date_config_spec.ntpConfig = ntp_config_spec
            try:
                if not self.module.check_mode:
                    host_date_time_manager.UpdateDateTimeConfig(date_config_spec)
                if self.verbose:
                    self.results[host.name]['msg'] = message
            except vim.fault.HostConfigFault as config_fault:
                self.module.fail_json(
                    msg="Failed to configure NTP for host '%s' due to : %s" %
                    (host.name, to_native(config_fault.msg))
                )
            return new_ntp_servers
    def check_host_state(self):