/usr/share/doc/gnupg-curl/changelog.Debian.gz is in gnupg-curl 1.4.16-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/gnupg-curl/../gpgv/changelog.Debian.gz
/usr/share/doc/gnupg-curl/../gpgv/changelog.Debian.gz