File _patchinfo of Package patchinfo

<patchinfo>
  <packager>dmdiss</packager>
  <category>recommended</category>
  <rating>low</rating>
  <summary>sysstat: Fix sadf timestamp XML</summary>
  <description>This update fixes the following issue for sysstat:
- bnc#800978: Fix sadf timestamp XML</description>
  <issue tracker="bnc" id="800978">sysstat sadf produces invalid XML</issue>
</patchinfo>