/usr/ is in libappstream-dev 0.9.4-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/appstream.pc
/usr/include/
/usr/include/AppStream/
/usr/include/AppStream/as-validator-issue.h
/usr/include/AppStream/as-screenshot.h
/usr/include/AppStream/as-category.h
/usr/include/AppStream/as-enums.h
/usr/include/AppStream/as-utils.h
/usr/include/AppStream/as-data-pool.h
/usr/include/AppStream/appstream.h
/usr/include/AppStream/as-distro-details.h
/usr/include/AppStream/as-translation.h
/usr/include/AppStream/as-menu-parser.h
/usr/include/AppStream/as-component.h
/usr/include/AppStream/as-icon.h
/usr/include/AppStream/as-provided.h
/usr/include/AppStream/as-metadata.h
/usr/include/AppStream/as-image.h
/usr/include/AppStream/as-validator.h
/usr/include/AppStream/as-release.h
/usr/include/AppStream/as-database.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libappstream-dev/
/usr/share/doc/libappstream-dev/copyright
/usr/share/vala/
/usr/share/vala/vapi/
/usr/share/vala/vapi/appstream.vapi
/usr/share/gir-1.0/
/usr/share/gir-1.0/AppStream-1.0.gir
/usr/lib/x86_64-linux-gnu/libappstream.so
/usr/share/doc/libappstream-dev/changelog.Debian.gz