Update eval_utils.py

eval_utils.py

@@ -256,7 +256,7 @@ def evaluate_summ(gold_data, pred_data):
             pred_summaries.append(pred_summary)
 
     
-    rl_evaluator = rouge.Rouge(metrics=['rouge-n','rouge-l'], max_n=2, limit_length=False, apply_avg=True)
+    rl_evaluator = rouge.Rouge(metrics=['rouge-l'], max_n=2, limit_length=False, apply_avg=True)
     rl_scores = rl_evaluator.get_scores(pred_summaries, gold_summaries)
     print("Rouge:", {k:v['f'] for k,v in rl_scores.items()}, flush=True)