/usr/share/doc/libramaze-ruby/changelog.Debian.gz is in libramaze-ruby 2012.12.08-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libramaze-ruby/../ruby-ramaze/changelog.Debian.gz
/usr/share/doc/libramaze-ruby/../ruby-ramaze/changelog.Debian.gz