/usr/share/doc/libsss-simpleifp-dev/changelog.Debian.gz is in libsss-simpleifp-dev 1.13.4-1ubuntu1.10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libsss-simpleifp-dev/../python-sss/changelog.Debian.gz