Progress printer for rcp (local copy). Shows COPIED/UNCHANGED/REMOVED/SKIPPED
for files, symlinks, and directories. Hard-link counters are omitted because
rcp never creates hard links.
Progress printer for rlink. Like CopyProgressPrinter but also reports
hard-link counters, since rlink’s primary output is hard links (with copies
as a fallback for --update changes).
Progress printer for rchm. Reports CHANGED / UNCHANGED / SKIPPED counts per
entry type; rchm performs only metadata ops, so there are no byte counters.