/usr/share/doc/libglpk-dev/changelog.Debian.gz is in libglpk-dev 4.45-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libglpk-dev/../libglpk0/changelog.Debian.gz
/usr/share/doc/libglpk-dev/../libglpk0/changelog.Debian.gz