wt-status.c: handle worktree renames
Merge branch 'jk/abort-clone-with-existing-dest'
perf: amend the grep tests to test grep.threads
wt-status.c: catch unhandled diff status codes
t2203: test status output with porcelain v2 format
object: add clear_commit_marks_all()
clone: factor out dir_exists() helper
perf/aggregate: refactor printing results