integral part of the structure instead of pointer to a
  separately allocated buffer.
- Improved the code that was ensuring that no messages from the
  receiver could be merged into the middle of a partially written
  buffer from the generator.  The new code ensures that we never
  avoid reading the messages from the receiver (like we used to).
  This ensures that the generator will not hang when the receiver
  got a read error on the socket, sent us a message about it, but
  the socket in the generator never becomes writable for it to get
  a similar error (now we are assured of getting the receiver's
  note about their read error, and we know to shut things down).

the release date was added.  Changed "ln -f" to "cp -p" because
samba.org doesn't allow ln to be used at the moment.

the --relative option enabled.

it is indented in the manpage.

Proxy-Authorization header is properly padded with trailing '='
chars.

if the caller wants to pad the value with trailing '=' chars.

out-of-order hard-linked files, changed the script to do the
hard-linking manually.

like cp).

reason other than the destination does not exist, mention the
error and exit.

due to timing tests showing that the per-byte modulus calculation
slowed down regular sized files.  Kept the other improvements
because they lessened our memory use and actually sped up the code.

  need for it.
- Fixed a really old bug in the verbose output where it would output
  the wrong sum value (off by one).
- Renamed the tag_hit variables & debug output to hash_hit.

work better with large files.  I further modified it to eliminate
the extra level of indirectness (and the qsort()), which saves
memory.

with an error.