/usr/share/doc/libgssapi-krb5-2/changelog.Debian.gz is in libgssapi-krb5-2 1.12+dfsg-2ubuntu5.4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgssapi-krb5-2/../libk5crypto3/changelog.Debian.gz