/usr/share/doc/ is in libmagic-ocaml-dev 0.7.3-5build7.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc-base/libmagic-ocaml-dev
/usr/share/doc/libmagic-ocaml-dev/
/usr/share/doc/libmagic-ocaml-dev/html/
/usr/share/doc/libmagic-ocaml-dev/html/style.css
/usr/share/doc/libmagic-ocaml-dev/html/index_extensions.html
/usr/share/doc/libmagic-ocaml-dev/html/index_exceptions.html
/usr/share/doc/libmagic-ocaml-dev/html/index_types.html
/usr/share/doc/libmagic-ocaml-dev/html/index_class_types.html
/usr/share/doc/libmagic-ocaml-dev/html/index_attributes.html
/usr/share/doc/libmagic-ocaml-dev/html/index_modules.html
/usr/share/doc/libmagic-ocaml-dev/html/Magic.html
/usr/share/doc/libmagic-ocaml-dev/html/type_Magic.html
/usr/share/doc/libmagic-ocaml-dev/html/index.html
/usr/share/doc/libmagic-ocaml-dev/html/index_values.html
/usr/share/doc/libmagic-ocaml-dev/html/index_module_types.html
/usr/share/doc/libmagic-ocaml-dev/html/index_classes.html
/usr/share/doc/libmagic-ocaml-dev/html/index_methods.html
/usr/share/doc/libmagic-ocaml-dev/copyright
/usr/share/doc/libmagic-ocaml-dev/README
/usr/share/doc/libmagic-ocaml-dev/changelog.Debian.gz