/usr/share/doc/libneon27-gnutls-dev/changelog.Debian.gz is in libneon27-gnutls-dev 0.30.1-3build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libneon27-gnutls-dev/../libneon27-gnutls/changelog.Debian.gz