Merge topic 'Help-CMP0105-clarifications'

c96df3dc8b Merge branch 'backport-3.26-help-CMP0105' into Help-CMP0105-clarifications
afd40232fa Help: CMP0105 policy: clarifications

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !8418