/usr/share/doc/libghc-pretty-show-prof/changelog.Debian.gz is in libghc-pretty-show-prof 1.6.9-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libghc-pretty-show-prof/../libghc-pretty-show-dev/changelog.Debian.gz