template - move backup to its own doc (#59893)

* template - move backup to its own doc

* Use the backup doc fragment for template

lib/ansible/modules/files/template.py

@@ -39,6 +39,7 @@ author:
 - Ansible Core Team
 - Michael DeHaan
 extends_documentation_fragment:
+- backup
 - files
 - template_common
 - validate

lib/ansible/modules/windows/win_template.py

@@ -15,6 +15,12 @@ module: win_template
 version_added: "1.9.2"
 options:
   backup:
+    description:
+    - Determine whether a backup should be created.
+    - When set to C(yes), create a backup file including the timestamp information
+      so you can get the original file back if you somehow clobbered it incorrectly.
+    type: bool
+    default: no
     version_added: '2.8'
   newline_sequence:
     default: '\r\n'

lib/ansible/plugins/doc_fragments/template_common.py

@@ -39,13 +39,6 @@ options:
     - Location to render the template to on the remote machine.
     type: path
     required: yes
-  backup:
-    description:
-    - Determine whether a backup should be created.
-    - When set to C(yes), create a backup file including the timestamp information
-      so you can get the original file back if you somehow clobbered it incorrectly.
-    type: bool
-    default: no
   newline_sequence:
     description:
     - Specify the newline sequence to use for templating files.