gentoo-overlay/gnome-extra/gnome-power-manager/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<herd>gnome</herd>
	<longdescription lang="en">
		Power Manager daemon for the GNOME desktop environment that makes it
		easy to manage your laptop or desktop system.
	</longdescription>
</pkgmetadata>