/usr/ is in libdiet-dev 1.4.4-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/pkgconfig/diet.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libdiet-dev/
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/include/
/usr/include/d/
/usr/include/d/diet/
/usr/include/d/diet/diet/
/usr/include/d/diet/diet/defs.d
/usr/include/d/diet/diet/dom.d
/usr/include/d/diet/diet/html.d
/usr/include/d/diet/diet/input.d
/usr/include/d/diet/diet/internal/
/usr/include/d/diet/diet/internal/html.d
/usr/include/d/diet/diet/internal/string.d
/usr/include/d/diet/diet/parser.d
/usr/include/d/diet/diet/traits.d
/usr/share/doc/libdiet-dev/copyright
/usr/lib/x86_64-linux-gnu/libdiet.so
/usr/share/doc/libdiet-dev/changelog.Debian.gz