Tidy up validate-modules ignores for monitoring modules (#1350) (#1372)

* fixed validation-modules for plugins/modules/monitoring/bigpanda.py

* fixed validation-modules for plugins/modules/monitoring/circonus_annotation.py

* fixed validation-modules for plugins/modules/monitoring/honeybadger_deployment.py

* fixed validation-modules for plugins/modules/monitoring/icinga2_feature.py

* fixed validation-modules for plugins/modules/monitoring/icinga2_host.py

* fixed validation-modules for plugins/modules/monitoring/librato_annotation.py

* fixed validation-modules for plugins/modules/monitoring/logentries.py

* fixed validation-modules for plugins/modules/monitoring/logstash_plugin.py

* fixed validation-modules for plugins/modules/monitoring/newrelic_deployment.py

* fixed validation-modules for plugins/modules/monitoring/pagerduty_alert.py

* fixed validation-modules for plugins/modules/monitoring/pagerduty.py

* fixed validation-modules for plugins/modules/monitoring/pingdom.py

* fixed validation-modules for plugins/modules/monitoring/rollbar_deployment.py

* fixed validation-modules for plugins/modules/monitoring/spectrum_device.py

* fixed validation-modules for plugins/modules/monitoring/stackdriver.py

* fixed validation-modules for plugins/modules/monitoring/statusio_maintenance.py

* fixed validation-modules for plugins/modules/monitoring/uptimerobot.py

* fixed validation-modules for plugins/modules/monitoring/datadog/datadog_event.py

* fixed validation-modules for plugins/modules/monitoring/datadog/datadog_monitor.py

* fixed validation-modules for plugins/modules/monitoring/sensu/sensu_check.py

* fixed validation-modules for plugins/modules/monitoring/sensu/sensu_client.py

* fixed validation-modules for plugins/modules/monitoring/sensu/sensu_handler.py

* fixed validation-modules for plugins/modules/monitoring/sensu/sensu_silence.py

* fixed validation-modules for plugins/modules/monitoring/sensu/sensu_subscription.py

* fixed trailing space

* Enabling validation-modules for monitoring modules

* Added line for 2.9

* Update plugins/modules/monitoring/icinga2_host.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/modules/monitoring/datadog/datadog_event.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Suggestion from PR

* oops, missed the 2.11 ignore file

* Update plugins/modules/monitoring/icinga2_host.py

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit ce5fc7764a)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

plugins/modules/monitoring/datadog/datadog_event.py

@@ -24,36 +24,46 @@ author:
 - "Naoya Nakazawa (@n0ts)"
 options:
     api_key:
+        type: str
         description: ["Your DataDog API key."]
         required: true
     app_key:
+        type: str
         description: ["Your DataDog app key."]
         required: true
     title:
+        type: str
         description: ["The event title."]
         required: true
     text:
+        type: str
         description: ["The body of the event."]
         required: true
     date_happened:
+        type: int
         description:
         - POSIX timestamp of the event.
         - Default value is now.
-        default: now
     priority:
+        type: str
         description: ["The priority of the event."]
         default: normal
         choices: [normal, low]
     host:
-        description: ["Host name to associate with the event."]
-        default: "{{ ansible_hostname }}"
+        type: str
+        description:
+        - Host name to associate with the event.
+        - If not specified, it defaults to the remote system's hostname.
     tags:
+        type: list
         description: ["Comma separated list of tags to apply to the event."]
     alert_type:
+        type: str
         description: ["Type of alert."]
         default: info
         choices: ['error', 'warning', 'info', 'success']
     aggregation_key:
+        type: str
         description: ["An arbitrary string to use for aggregation."]
     validate_certs:
         description: