/usr/share/doc/linuxdoc-tools/linuxdoc-sgml.info.gz is in linuxdoc-tools 0.9.69-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linuxdoc-tools/../../info/linuxdoc-sgml.info.gz
/usr/share/doc/linuxdoc-tools/../../info/linuxdoc-sgml.info.gz