/usr/share/doc/python-rrdtool/changelog.Debian.gz is in python-rrdtool 1.4.7-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python-rrdtool/../librrd4/changelog.Debian.gz
/usr/share/doc/python-rrdtool/../librrd4/changelog.Debian.gz