/usr/share/doc/texlive-doc/latex/ednotes/CHANGING.txt.gz is in texlive-humanities-doc 2009-10ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/texlive-doc/latex/ednotes/../../../texlive-humanities-doc/latex/ednotes/CHANGING.txt.gz