/usr/share/doc/python-vm-builder-ec2/changelog.Debian.gz is in python-vm-builder-ec2 0.12.4+bzr494-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python-vm-builder-ec2/../python-vm-builder/changelog.Debian.gz