forgot to add doc_to_choice

lm_eval/tasks/xstorycloze/default_ar.yaml

@@ -7,6 +7,7 @@ training_split: train
 validation_split: eval
 doc_to_text: "{{[input_sentence_1, input_sentence_2, input_sentence_3, input_sentence_4]|join(' ')}}"
 doc_to_target: "{{answer_right_ending-1}}"
+doc_to_choice: {{[sentence_quiz1, sentence_quiz2]}}
 should_decontaminate: true
 doc_to_decontamination_query: "{{[input_sentence_1, input_sentence_2, input_sentence_3, input_sentence_4]|join(' ')}}"
 metric_list: