File _patchinfo of Package patchinfo.21

<patchinfo>
  <issue id="791014" tracker="bnc">otrs: XSS fixed</issue>
  <issue id="CVE-2012-4751" tracker="cve" />
  <packager>wrosenauer</packager>
  <category>security</category>
  <rating>moderate</rating>
  <summary>update for otrs</summary>
  <description>This version upgrade to otrs 2.4.15 fixed a Cross-Site Scripting (XSS) flaw.</description>
</patchinfo>