/usr/share/doc/libgstreamer0.10-dev/changelog.Debian.gz is in libgstreamer0.10-dev 0.10.36-1.5ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgstreamer0.10-dev/../libgstreamer0.10-0/changelog.Debian.gz