/usr/share/doc/octave3.2-emacsen/changelog.Debian.gz is in octave3.2-emacsen 3.2.4-12.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/octave3.2-emacsen/../octave3.2/changelog.Debian.gz
/usr/share/doc/octave3.2-emacsen/../octave3.2/changelog.Debian.gz