/usr/share/doc/ is in xnav 0.04-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/xnav/
/usr/share/doc/xnav/NEWS.gz
/usr/share/doc/xnav/copyright
/usr/share/doc/xnav/changelog.Debian.gz
/usr/share/doc/xnav/example/
/usr/share/doc/xnav/example/xml/
/usr/share/doc/xnav/example/xml/rsum.xsl
/usr/share/doc/xnav/example/xml/rsum.dtd
/usr/share/doc/xnav/example/html/
/usr/share/doc/xnav/example/html/xnav.css
/usr/share/doc/xnav/example/html/index.html
/usr/share/doc/xnav/example/html/xnav.xml
/usr/share/doc/xnav/example/html/index.xml
/usr/share/doc/xnav/example/html/XNAV/
/usr/share/doc/xnav/example/html/XNAV/foot.xml
/usr/share/doc/xnav/example/html/XNAV/catalog.xml
/usr/share/doc/xnav/example/html/XNAV/xnavinc.xsl
/usr/share/doc/xnav/example/html/XNAV/head.xml
/usr/share/doc/xnav/example/html/c/
/usr/share/doc/xnav/example/html/c/index.html
/usr/share/doc/xnav/example/html/c/cb.xml
/usr/share/doc/xnav/example/html/c/xnav.xml
/usr/share/doc/xnav/example/html/c/ca.xml
/usr/share/doc/xnav/example/html/c/cb.html
/usr/share/doc/xnav/example/html/c/index.xml
/usr/share/doc/xnav/example/html/c/ca.html
/usr/share/doc/xnav/example/html/a/
/usr/share/doc/xnav/example/html/a/index.html
/usr/share/doc/xnav/example/html/a/xnav.xml
/usr/share/doc/xnav/example/html/a/index.xml
/usr/share/doc/xnav/example/html/b/
/usr/share/doc/xnav/example/html/b/bc.xml
/usr/share/doc/xnav/example/html/b/index.html
/usr/share/doc/xnav/example/html/b/xnav.xml
/usr/share/doc/xnav/example/html/b/ba/
/usr/share/doc/xnav/example/html/b/ba/index.html
/usr/share/doc/xnav/example/html/b/ba/xnav.xml
/usr/share/doc/xnav/example/html/b/ba/baa/
/usr/share/doc/xnav/example/html/b/ba/baa/index.html
/usr/share/doc/xnav/example/html/b/ba/baa/xnav.xml
/usr/share/doc/xnav/example/html/b/ba/baa/index.xml
/usr/share/doc/xnav/example/html/b/ba/index.xml
/usr/share/doc/xnav/example/html/b/bc.html
/usr/share/doc/xnav/example/html/b/index.xml
/usr/share/doc/xnav/example/html/b/bb/
/usr/share/doc/xnav/example/html/b/bb/index.html
/usr/share/doc/xnav/example/html/b/bb/xnav.xml
/usr/share/doc/xnav/example/html/b/bb/index.xml