Future Work
-----------
-- Add a 'verify' subcommand to the 'git midx' builtin to verify the
- contents of the multi-pack-index file match the offsets listed in
- the corresponding pack-indexes.
-
- The multi-pack-index allows many packfiles, especially in a context
where repacking is expensive (such as a very large repo), or
unexpected maintenance time is unacceptable (such as a high-demand