/usr/share/doc/ is in bittorrent 3.4.2-11.3ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/bittorrent/
/usr/share/doc/bittorrent/examples/
/usr/share/doc/bittorrent/examples/bittorrent.init
/usr/share/doc/bittorrent/examples/bittorrent.default
/usr/share/doc/bittorrent/documentation.html
/usr/share/doc/bittorrent/credits.txt
/usr/share/doc/bittorrent/README.txt
/usr/share/doc/bittorrent/copyright
/usr/share/doc/bittorrent/protocol.html
/usr/share/doc/bittorrent/introduction.html
/usr/share/doc/bittorrent/download.html
/usr/share/doc/bittorrent/press.html
/usr/share/doc/bittorrent/README.Debian
/usr/share/doc/bittorrent/guide.html
/usr/share/doc/bittorrent/bittorrent_logo.png
/usr/share/doc/bittorrent/FAQ.html
/usr/share/doc/bittorrent/index.html
/usr/share/doc/bittorrent/donate.html
/usr/share/doc/bittorrent/changelog.Debian.gz