gentoo-overlay/sys-apps/shadow/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="project">
	<email>base-system@gentoo.org</email>
	<name>Gentoo Base System</name>
 </maintainer> <maintainer type="project">
	<email>pam-bugs@gentoo.org</email>
	<name>Pluggable Authentication Method maintenance</name>
 </maintainer> <!-- only for USE=pam -->
<upstream>
	<remote-id type="cpe">cpe:/a:debian:shadow</remote-id>
</upstream>
</pkgmetadata>