- We now accept an itemized-changes flag-byte over the socket if we're

  the local client and --itemized-changes was specified.  If the item
  is not being updated, just call log_recv().
- We reject an attempt to file-update any non-regular file, not just
  dirs.
- Avoid the verbose "log the transfer" output if --log-format was
  specified and log_before_transfer is in effect.
- Call log_recv() with its new iflags arg.