Fix a bug in run_glue.py (#9812) (#9815)

examples/text-classification/run_glue.py

@@ -317,7 +317,7 @@ def main():
     if (
         model.config.label2id != PretrainedConfig(num_labels=num_labels).label2id
         and data_args.task_name is not None
-        and is_regression
+        and not is_regression
     ):
         # Some have all caps in their config, some don't.
         label_name_to_id = {k.lower(): v for k, v in model.config.label2id.items()}