Merge branch 'nd/maint-fix-add-typo-detection'

* nd/maint-fix-add-typo-detection: Revert "excluded_1(): support exclude files in index" unpack-trees: fix sparse checkout's "unable to match directories" unpack-trees: move all skip-worktree checks back to unpack_trees() dir.c: add free_excludes() cache.h: realign and use (1 << x) form for CE_* constants