/usr/share/doc/python-qgis/changelog.Debian.gz is in python-qgis 2.0.1-2build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python-qgis/../libqgis-core2.0.1/changelog.Debian.gz
/usr/share/doc/python-qgis/../libqgis-core2.0.1/changelog.Debian.gz