Update __init__.py

lm_eval/tasks/__init__.py

@@ -14,7 +14,7 @@ from lm_eval.api.registry import (
 
 
 def get_task_name_from_config(task_config):
-    if "dataset_name" not in task_config:
+    if "dataset_name" in task_config:
         return "{dataset_path}_{dataset_name}".format(**task_config)
     else:
         return "{dataset_path}".format(**task_config)