Merge branch 'jk/filter-branch-require-clean-work-tree'

* jk/filter-branch-require-clean-work-tree: filter-branch: use require_clean_work_tree

Junio C Hamano committed Oct 5, 2011 at 12:35 UTC 9c140016508fe7329d5aa962b473d8e84af108b1

No changes.