File _patchinfo of Package patchinfo.17588

<patchinfo incident="17588">
  <issue tracker="bnc" id="1148642">Eigen3Config.cmake incorrect</issue>
  <packager>cgiboudeaux</packager>
  <rating>moderate</rating>
  <category>recommended</category>
  <summary>Recommended update for eigen3</summary>
  <description>This update for eigen3 fixes the following issues:

- Fix double {prefix} as we use INCLUDE_INSTALL_DIR with {_includedir}. (boo#1148642.)
</description>
</patchinfo>