Merge topic 'scope-doc-tweaks' bbf3ed5422 Help: Explain block() policy-scope rules more clearly 2f319c6484 Help: Remove "this command" ambiguity in set() docs 9eecdc7ab7 Help: Use signature directive for cmake_policy() Acked-by: Kitware Robot <kwrobot@kitware.com> Merge-request: !8761