* tr/filter-branch:
revision --simplify-merges: make it a no-op without pathspec
revision --simplify-merges: do not leave commits unprocessed
revision --simplify-merges: use decoration instead of commit->util field
Documentation: rev-list-options: move --simplify-merges documentation
filter-branch: use --simplify-merges
filter-branch: fix ref rewriting with --subdirectory-filter
filter-branch: Extend test to show rewriting bug
Topo-sort before --simplify-merges
revision traversal: show full history with merge simplification
revision.c: whitespace fix