- Added extra info to the "FILENAME exists" output of `--ignore-existing` when
`--info=skip2` is used. The skip message becomes "FILENAME exists (INFO)"
- where the INFO is one of uptodate, type differs, or differs.
+ where the INFO is one of "type change", "sum change" (requires `-c`), "file
+ change" (based on the quick check), "attr change", or "uptodate".
- Some manpage improvements.