/usr/share/doc/libgsound-dev/changelog.Debian.gz is in libgsound-dev 1.0.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgsound-dev/../gir1.2-gsound-1.0/changelog.Debian.gz
/usr/share/doc/libgsound-dev/../gir1.2-gsound-1.0/changelog.Debian.gz