gentoo-overlay/app-misc/astrolog/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<herd>sci</herd>
	<maintainer>
		<email>george@gentoo.org</email>
		<name>George Shapovalov</name>
		<description>I'll be taking care of it. But since we need to have a herd in metadata
	I've put sci there, as it seems the most related one.
	</description>
	</maintainer>
</pkgmetadata>