File _patchinfo of Package patchinfo.2940

<patchinfo incident="2940">
  <issue id="987985" tracker="bnc">system hang when system shutdown after control group service start and stop.</issue>
  <category>recommended</category>
  <rating>moderate</rating>
  <packager>mkoutny</packager>
  <description>
This update for libcgroup fixes the following issue:

- Fix hang when system attempts to shut down after control group service restart
  cycle. (bsc#987985)
</description>
  <summary>Recommended update for libcgroup</summary>
</patchinfo>