Fixed some itemized logging failures:
- If a symlink/device/special-file changes its value without any
attribute changes, the itemized event no longer gets dropped.
- We put a 'c' into the checksum/change field now to indicate when
a symlink/device/special-file changes its value without changing
its type. This lets us properly interpret the --copy-links output
to know which items are getting copied without changes and which
are getting created with new content.
- Fixed the 'T' itemized output for a symlink when rsync tries to
set the right time but fails due to lack of OS/disk support.