/usr/share/doc/libxfreerdp-client-dbg/README is in libxfreerdp-client-dbg 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libxfreerdp-client-dbg/../libwinpr-crt0.1/README