validate-modules: Fix all system modules (#52384)

This PR includes validate-modules fixes for all system modules.
Except a few that are deliberately implemented like this.

lib/ansible/modules/system/seport.py

@@ -1,4 +1,5 @@
 #!/usr/bin/python
+# -*- coding: utf-8 -*-
 
 # Copyright: (c) 2014, Dan Keder <dan.keder@gmail.com>
 # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
@@ -10,7 +11,7 @@ ANSIBLE_METADATA = {'metadata_version': '1.1',
                     'status': ['preview'],
                     'supported_by': 'community'}
 
-DOCUMENTATION = '''
+DOCUMENTATION = r'''
 ---
 module: seport
 short_description: Manages SELinux network port type definitions
@@ -20,33 +21,37 @@ version_added: "2.0"
 options:
   ports:
     description:
-      - Ports or port ranges. Can be a list (since 2.6) or comma separated string.
+      - Ports or port ranges.
+      - Can be a list (since 2.6) or comma separated string.
+    type: list
     required: true
   proto:
     description:
       - Protocol for the specified port.
+    type: str
     required: true
     choices: [ tcp, udp ]
   setype:
     description:
       - SELinux type for the specified port.
+    type: str
     required: true
   state:
     description:
       - Desired boolean value.
-    required: true
+    type: str
     choices: [ absent, present ]
     default: present
   reload:
     description:
       - Reload SELinux policy after commit.
     type: bool
-    default: 'yes'
+    default: yes
   ignore_selinux_state:
     description:
     - Run independent of selinux runtime state
     type: bool
-    default: false
+    default: no
     version_added: '2.8'
 notes:
    - The changes are persistent across reboots.
@@ -58,7 +63,7 @@ author:
 - Dan Keder (@dankeder)
 '''
 
-EXAMPLES = '''
+EXAMPLES = r'''
 - name: Allow Apache to listen on tcp port 8888
   seport:
     ports: 8888
@@ -258,7 +263,7 @@ def main():
             ports=dict(type='list', required=True),
             proto=dict(type='str', required=True, choices=['tcp', 'udp']),
             setype=dict(type='str', required=True),
-            state=dict(type='str', required=True, choices=['absent', 'present']),
+            state=dict(type='str', default='present', choices=['absent', 'present']),
             reload=dict(type='bool', default=True),
         ),
         supports_check_mode=True,