/usr/share/cmake-3.5/Help/prop_sf/ is in cmake-data 3.5.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/cmake-3.5/Help/prop_sf/ABSTRACT.rst
/usr/share/cmake-3.5/Help/prop_sf/AUTORCC_OPTIONS.rst
/usr/share/cmake-3.5/Help/prop_sf/AUTOUIC_OPTIONS.rst
/usr/share/cmake-3.5/Help/prop_sf/COMPILE_DEFINITIONS.rst
/usr/share/cmake-3.5/Help/prop_sf/COMPILE_DEFINITIONS_CONFIG.rst
/usr/share/cmake-3.5/Help/prop_sf/COMPILE_FLAGS.rst
/usr/share/cmake-3.5/Help/prop_sf/EXTERNAL_OBJECT.rst
/usr/share/cmake-3.5/Help/prop_sf/Fortran_FORMAT.rst
/usr/share/cmake-3.5/Help/prop_sf/GENERATED.rst
/usr/share/cmake-3.5/Help/prop_sf/HEADER_FILE_ONLY.rst
/usr/share/cmake-3.5/Help/prop_sf/KEEP_EXTENSION.rst
/usr/share/cmake-3.5/Help/prop_sf/LABELS.rst
/usr/share/cmake-3.5/Help/prop_sf/LANGUAGE.rst
/usr/share/cmake-3.5/Help/prop_sf/LOCATION.rst
/usr/share/cmake-3.5/Help/prop_sf/MACOSX_PACKAGE_LOCATION.rst
/usr/share/cmake-3.5/Help/prop_sf/OBJECT_DEPENDS.rst
/usr/share/cmake-3.5/Help/prop_sf/OBJECT_OUTPUTS.rst
/usr/share/cmake-3.5/Help/prop_sf/SYMBOLIC.rst
/usr/share/cmake-3.5/Help/prop_sf/VS_DEPLOYMENT_CONTENT.rst
/usr/share/cmake-3.5/Help/prop_sf/VS_DEPLOYMENT_LOCATION.rst
/usr/share/cmake-3.5/Help/prop_sf/VS_SHADER_ENTRYPOINT.rst
/usr/share/cmake-3.5/Help/prop_sf/VS_SHADER_FLAGS.rst
/usr/share/cmake-3.5/Help/prop_sf/VS_SHADER_MODEL.rst
/usr/share/cmake-3.5/Help/prop_sf/VS_SHADER_TYPE.rst
/usr/share/cmake-3.5/Help/prop_sf/VS_XAML_TYPE.rst
/usr/share/cmake-3.5/Help/prop_sf/WRAP_EXCLUDE.rst
/usr/share/cmake-3.5/Help/prop_sf/XCODE_EXPLICIT_FILE_TYPE.rst
/usr/share/cmake-3.5/Help/prop_sf/XCODE_LAST_KNOWN_FILE_TYPE.rst