/usr/share/doc/ is in root-system-proofd 5.34.30-0ubuntu8.
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/usr/share/doc/root-system-proofd/
/usr/share/doc/root-system-proofd/examples/
/usr/share/doc/root-system-proofd/examples/xpd.groups.sample
/usr/share/doc/root-system-proofd/examples/proofd.xinetd
/usr/share/doc/root-system-proofd/examples/motd.sample
/usr/share/doc/root-system-proofd/examples/cluster.conf.sample
/usr/share/doc/root-system-proofd/examples/noproof.sample
/usr/share/doc/root-system-proofd/examples/rootnetrc.sample
/usr/share/doc/root-system-proofd/examples/xpd.cf.sample.gz
/usr/share/doc/root-system-proofd/examples/proof.conf.sample
/usr/share/doc/root-system-proofd/copyright
/usr/share/doc/root-system-proofd/README.Debian
/usr/share/doc/root-system-proofd/changelog.Debian.gz