Merge branch 'maint'

* maint: Start draft release notes for 1.6.0.3 git-repack uses --no-repack-object, not --no-repack-delta. Typo "bogos" in format-patch error message. builtin-clone: fix typo Bust the ghost of long-defunct diffcore-pathspec. completion: git commit should list --interactive Conflicts: RelNotes