/usr/share/doc/libglpk36-dbg/README is in libglpk36-dbg 4.52.1-2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libglpk36-dbg/../libglpk36/README
/usr/share/doc/libglpk36-dbg/../libglpk36/README