File _patchinfo of Package patchinfo.39903

<patchinfo incident="39903">
  <packager>oertel</packager>
  <rating>moderate</rating>
  <category>recommended</category>
  <summary>Recommended update for post-build-checks</summary>
  <description>This update for post-build-checks fixes the following issues:

- Try to sort all searches for built rpms to make it more consistent
- Fix version
- Add mount, umount, swapon and swapoff to ESSENTIAL_PKG_TO_KEEP
- Follow symlinks to infer which packages to keep
- Convert egrep/fgrep calls to grep -E/-F, respectively
- Reduce work in installtest script
- Use predictable C locale for rpm listing
- Speedup check-lanana
</description>
</patchinfo>