Log Message:
Update to rsync-3.0.4.

Changes since 3.0.3:

BUG FIXES:

- Fixed a bug in the hard-linking code where it would sometimes try to
  allocate 0 bytes of memory (which fails on some OSes, such as AIX).

- Fixed the hard-linking of files from a device that has a device number
  of 0 (which seems to be a common device number on NetBSD).

- Fixed the handling of a --partial-dir that cannot be created.  This
  particularly impacts the --delay-updates option (since the files cannot
  be delayed without a partial-dir), and was potentially destructive if
  the --remove-source-files was also specified.

- Fixed a couple issues in the --fake-super handling of xattrs when the
  destination files have root-level attributes (e.g. selinux values) that
  a non-root copy can't affect.

- Improved the keep-alive check in the generator to fire consistently in
  incremental-recursion mode when --timeout is enabled.

- The --iconv option now converts the content of a symlink too, instead
  of leaving it in the wrong character-set (requires 3.0.4 on both sides
  of the transfer).

- When using --iconv, if a filename fails to convert on the receiving side,
  this no longer makes deletions in the root-dir of the transfer fail
  silently (the user now gets a warning about deletions being disabled
due to IO error as long as --ignore-errors was not specified).

- When using --iconv, if a server-side receiver can't convert a filename,
the error message sent back to the client no longer mangles the name
with the wrong charset conversion.

- Fixed a potential alignment issue in the IRIX ACL code when allocating
the initial "struct acl" object.  Also, cast mallocs to avoid warnings.

- Changed some errors that were going to stdout to go to stderr.

- Made human_num() and human_dnum() able to output a negative number
(rather than outputting a cryptic string of punctuation).

ENHANCEMENTS:

- Rsync will avoid sending an -e option to the server if an older protocol
is requested (and thus the option would not be useful).  This lets the
user specify the --protocol=29 option to access an overly-restrictive
server that is rejecting the protocol-30 use of -e to the server.

- Improved the message output for an RERR_PARTIAL exit.

DEVELOPER RELATED:

- The Makefile will not halt for just a timestamp change on the Makefile
or the configure files, only for actual changes in content.

- Changed some commands in the testsuite's xattrs.test that called "rsync"
instead of "$RSYNC".

- Enhanced the release scripts to be able to handle a branch release and
to do even more consistency checks on the files.