/usr/share/doc/qemu-system-sparc/changelog.Debian.gz is in qemu-system-sparc 2.0.0~rc1+dfsg-0ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/qemu-system-sparc/../qemu-system-common/changelog.Debian.gz