<description> has no translations

[ignatenkobrain]

$ appstream-util validate-strict ../claws-mail.appdata.xml.in 
../claws-mail.appdata.xml.in: 
translations-required   <description> has no translations
Validation failed

<?xml version="1.0" encoding="UTF-8"?>
<!-- Copyright 2014 Colin Leroy <colin@colino.net> and the Claws Mail team -->
<application>
  <id type="desktop">claws-mail.desktop</id>
  <metadata_license>CC-BY-SA-3.0</metadata_license>
  <project_license>GPL-3.0+</project_license>
  <description>
    <_p>
      Claws Mail is a fast, powerful and very extensible email client.
    </_p>
    <_p>
      It is highly configurable and handles hundreds of thousands of emails
      easily. Messages are managed in an open format, and are easy to interact
      with.
    </_p>
    <_p>
      Lots of extra functionality is provided by plugins, such as PGP signatures
      and encryption, an RSS aggregator, a calendar, powerful spam filtering,
      Perl and Python interactions, HTML and PDF rendering, and more.
    </_p>
  </description>
  <screenshots>
    <screenshot type="default" width="928" height="522">http://www.claws-mail.org/appdata/claws-main.png</screenshot>
    <screenshot width="928" height="522">http://www.claws-mail.org/appdata/claws-setup.png</screenshot>
  </screenshots>
  <url type="homepage">http://www.claws-mail.org/</url>
  <updatecontact>devel@lists.claws-mail.org</updatecontact>
</application>

I've translated description per tags. I think appstream-glib should handle all tags inside desctiption and if they're translated - not throw error.