gentoo-overlay/app-text/xmlto/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<maintainer type="person">
		<email>sam@gentoo.org</email>
		<name>Sam James</name>
	</maintainer>
	<use>
		<flag name="text">Support conversion from XML to plain text</flag>
	</use>
</pkgmetadata>