checkit "$RSYNC -avv -f dir-merge,-_.excl \
\"$fromdir/\" \"$todir/\"" "$chkdir" "$todir"
+$RSYNC -avR "$fromdir/foo" "$chkdir/"
+rm -rf "$chkdir$fromdir/foo/down"
+$RSYNC -avR --existing --filter='-! */' "$fromdir/foo" "$chkdir/"
+
+checkit "$RSYNC -avvR --exclude=\"$fromdir/foo/down\" \
+ \"$fromdir/foo\" \"$todir\"" "$chkdir$fromdir/foo" "$todir$fromdir/foo"
+
# The script would have aborted on error, so getting here means we've won.
exit 0