Merge branch 'pw/no-more-NULL-means-current-worktree' into next

API clean-up for the worktree subsystem.

* pw/no-more-NULL-means-current-worktree:
  path: remove repository argument from worktree_git_path()
  wt-status: avoid passing NULL worktree

diff --cc builtin/fsck.c
Simple merge

diff --cc builtin/worktree.c
Simple merge

diff --cc path.c
Simple merge

diff --cc revision.c
Simple merge

diff --cc wt-status.c
Simple merge