/usr/share/doc/libghc-cryptonite-prof/changelog.Debian.gz is in libghc-cryptonite-prof 0.23-2build5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libghc-cryptonite-prof/../libghc-cryptonite-dev/changelog.Debian.gz