File _patchinfo of Package patchinfo.57

<patchinfo incident="57">
  <packager>BenniBrunner</packager>
  <category>recommended</category>
  <rating>important</rating>
  <issue tracker="bnc" id="731339"/>
  <summary>mirall: included mirall in distribution</summary>
  <description>This update fixes the following issue for mirall:
    -731339: included mirall in 12.1</description>
</patchinfo>