/usr/share/doc/emacs24-nox/changelog.Debian.gz is in emacs24-nox 24.3+1-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/emacs24-nox/../emacs24-bin-common/changelog.Debian.gz
/usr/share/doc/emacs24-nox/../emacs24-bin-common/changelog.Debian.gz