[packages/rpm-build-tools] (7 commits) ...Add tool to reverse order parents in commit produced by pull

[draenog]

Summary of changes:

  2f3a7f8... purge_packages: Add vim modeline (*)
  f296164... purge_packages: Check for changes not merged upstream (*)
  25e20df... purge_packages: Add option to switch on/off git gc (*)
  74be80b... purge-packages: Allow CALL_GC to be determined by environme (*)
  7a68fdc... Don't call git-gc by default in purge purge-packages.sh (*)
  61cb845... Merge changes in purge-packages.sh
  dc99d75... Add tool to reverse order parents in commit produced by pul

(*) This commit already existed in another branch; no separate mail sent