/usr/share/doc/libgstreamer0.10-0-dbg/README.gz is in libgstreamer0.10-0-dbg 0.10.36-1.2ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgstreamer0.10-0-dbg/../libgstreamer0.10-0/README.gz