Merge branch 'ps/reflog-list' into HEAD

"git reflog" learned a "list" subcommand that enumerates known reflogs. * ps/reflog-list: builtin/reflog: introduce subcommand to list reflogs refs: stop resolving ref corresponding to reflogs refs: drop unused params from the reflog iterator callback refs: always treat iterators as ordered refs/files: sort merged worktree and common reflogs refs/files: sort reflogs returned by the reflog iterator dir-iterator: support iteration in sorted order dir-iterator: pass name to `prepare_next_entry_data()` directly