Merge topic 'doc-debug-find-pkg-var' into release-3.23

8efd4b5378 cmake::GetDebugFindPkgOutput: Use consistent argument name
546922a57b Help: Fix typo and improve docs for --debug-find-pkg|var options

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !6977