##### 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`
module: vmware_host_ntp
short_description: Manage NTP server configuration of an ESXi host
description:
- This module can be used to configure, add or remove NTP servers from an ESXi host.
- If C(state) is not given, the NTP servers will be configured in the exact sequence.
- User can specify an ESXi hostname or Cluster name. In case of cluster name, all ESXi hosts are updated.
version_added: '2.5'
author:
- Abhijeet Kasurde (@Akasurde)
- Christian Kotte (@ckotte)
notes:
- Tested on vSphere 6.5
requirements:
- python >= 2.6
- PyVmomi
options:
  esxi_hostname:
    description:
    - Name of the host system to work with.
    - This parameter is required if C(cluster_name) is not specified.
    type: str
  cluster_name:
    description:
    - Name of the cluster from which all host systems will be used.
    - This parameter is required if C(esxi_hostname) is not specified.
    type: str
  ntp_servers:
    description:
    - "IP or FQDN of NTP server(s)."
    - This accepts a list of NTP servers. For multiple servers, please look at the examples.