gentoo-overlay/app-admin/sudo/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <herd>base-system</herd>
  <longdescription lang="en">
    Sudo (superuser do) allows a system administrator to give certain
    users (or groups of users) the ability to run some (or all)
    commands as root or another user while logging the commands and
    arguments.
  </longdescription>
  <use>
	<flag name='sendmail'>
	  Allow sudo to send emails with sendmail.
	</flag>
    <flag name='offensive'>
      Let sudo print insults when the user types the wrong password.
    </flag>
  </use>
  <upstream>
    <remote-id type="cpe">cpe:/a:todd_miller:sudo</remote-id>
  </upstream>
</pkgmetadata>