Merge branch 'jk/cat-file-batch-all-wo-replace'

"git cat-file --batch" with the "--batch-all-objects" option is supposed to iterate over all the objects found in a repository, but it used to translate these object names using the replace mechanism, which defeats the point of enumerating all objects in the repository. This has been corrected. * jk/cat-file-batch-all-wo-replace: cat-file: use packed_object_info() for --batch-all-objects cat-file: split ordered/unordered batch-all-objects callbacks cat-file: disable refs/replace with --batch-all-objects cat-file: mention --unordered along with --batch-all-objects t1006: clean up broken objects