fails, we must make sure that the item we're skipping has a name that
  is still inside the missing hierarchy by using a prefix matching func.
- We now handle the failure to remove a file to create a dir the same
  way as a failed mkdir() (skipping the failed dir's contents).

- Added f_name_has_prefix().

suffix match stay in the wildcard-matching list.

for the default set of non-compressed file suffixes.

- Optimized the matching of non-compressing file suffixes.

when the dest directory does not exist.

yet in --dry-run mode to avoid outputting bogus delete details.

that uses --link-dest.

- Say "regular file" instead of "file" when itemizing a list of
  non-directory types.
- Try to avoid "file" in its generic sense, as it is hard to figure
  out when it includes dirs and when it doesn't.

- Use the latest F_DIR_*() defines (whose names were tweaked).

- Use the latest F_DIR_*() defines (whose names were tweaked).

- Define and use ACL_BUMP(), fixing a clash between -A and -x in a
  directory's data.
- Tweaked the F_DIR_*() defines to have more consistent names.
- Don't make F_SUM() return a char pointer that is const.

to make the naming consistent.

the same as earlier protocols.

  file list's contents.  Instead, it handles a parent dir prior to each
  extra file list.  This makes the dir-processing order the same in
  protocol 30 as it is in earlier protocols.
- Moved the permission-fudging code for dirs into recv_generator() to
  make the new protocol-30 dir-handling logic easier.

start, it refers to the file list's parent dir.

- Leave a 1-entry gap between incremental file lists so that we can use
  that index value to refer to the parent directory of each file list.
- Set and use the new ndx_end value in the file list.  The incremental
  recursion mode omits dirs in this value (except in the first list)
  since the generator will be using the new "gap" ndx value to process
  each parent dir.

- Added ndx_end value to struct file_list.

by get_dirlist().

be empty items that make the count inaccurate (and the name
somewhat deceiving).

anymore, as the sender code never concatenates the F_PATHNAME() value
with the dirname+basename string these days.

when the code is about to use the [ug]id_ndx value as an index (since
this saves a memory reference).

user specified -X twice.

values to index into the file-list extra-attribute array instead
of abusing the preserve_FOO variables.