/usr/share/doc/ is in libsdl-stretch-dev 0.3.1-10.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libsdl-stretch-dev/
/usr/share/doc/libsdl-stretch-dev/copyright
/usr/share/doc/libsdl-stretch-dev/html/
/usr/share/doc/libsdl-stretch-dev/html/index.html
/usr/share/doc/libsdl-stretch-dev/html/man/
/usr/share/doc/libsdl-stretch-dev/html/man/index.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re01.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re02.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re03.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re04.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re05.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re06.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re07.html
/usr/share/doc/libsdl-stretch-dev/html/man/rn01re08.html
/usr/share/doc/libsdl-stretch-dev/html/sdlstretch.html
/usr/share/doc-base/libsdl-stretch-dev
/usr/share/doc/libsdl-stretch-dev/changelog.Debian.gz