[PR #10286/e37cd1a0 backport][stable-11] fix YAML docs in multiple plugins (#10293)

fix YAML docs in multiple plugins (#10286)

* fix YAML docs in multiple plugins

* pfexec: fix short description

* adjust callback plugins

* fix wsl connection

* fix filter plugins

* fix inventory plugins

* minor adjustments in diy, print_task, xen_orchestra

(cherry picked from commit e37cd1a015)

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

plugins/callback/null.py

@@ -12,7 +12,7 @@ name: 'null'
 type: stdout
 requirements:
   - set as main display callback
-short_description: do not display stuff to screen
+short_description: Do not display stuff to screen
 description:
   - This callback prevents outputting events to screen.
 """