Description of problem:
gnome-software shows an error instead of available software updates:

failed to parse '/usr/share/appdata/sil-lateef.metainfo.xml': Error on line 13 char 17: Element 'description' was closed, but the currently open element is 'p'

And indeed, the closing </p> tag is missing from this file:

  <description>
    <p>
      Lateef is named after Shah Abdul Lateef Bhitai, the famous Sindhi mystic and
      poet. It is intended to be an appropriate style for use in Sindhi and other
      languages of the South Asian region.
  </description>


Version-Release number of selected component (if applicable):
sil-lateef-fonts-1.001-8.fc21.noarch

How reproducible:
every time

Steps to Reproduce:
1. launch gnome-software
2. go to Updates tab

Actual results:
xml error

Expected results:
show the updates

Additional info: