gentoo-overlay/dev-util/vmtouch/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer>
    <email>dlan@gentoo.org</email>
    <name>Yixun Lan</name>
  </maintainer>
  <longdescription>
  vmtouch is a tool for learning about and controlling the file system cache
  of unix and unix-like systems. It is BSD licensed so you can basically 
  do whatever you want with it.
  </longdescription>
</pkgmetadata>