+ if (defined $diff_algorithm) {
+ splice @diff_cmd, 1, 0, "--diff-algorithm=${diff_algorithm}";
+ }
+ if ($diff_indent_heuristic) {
+ splice @diff_cmd, 1, 0, "--indent-heuristic";
+ } elsif ($diff_compaction_heuristic) {
+ splice @diff_cmd, 1, 0, "--compaction-heuristic";
+ }