Changed --copy-dest to --link-dest.

testsuite/compare-dest.test

@@ -30,7 +30,7 @@ checkit "$RSYNC -avv --no-whole-file \
     --compare-dest=\"$alt1dir\" --compare-dest=\"$alt2dir\" \
     \"$fromdir/\" \"$todir/\"" "$chkdir" "$todir"
 checkit "$RSYNC -avv --no-whole-file \
-    --copy-dest=\"$alt1dir\" --copy-dest=\"$alt2dir\" \
+    --link-dest=\"$alt1dir\" --link-dest=\"$alt2dir\" \
     \"$fromdir/\" \"$todir/\"" "$fromdir" "$todir"
 
 # The script would have aborted on error, so getting here means we've won.