bug fix

Author: hiroshi-matsuda-rit

megatron/data/blendable_dataset.py

@@ -48,7 +48,7 @@ def _build_indices():
         desc = "Blendable dataset\n\n"
         desc += "Datasets:\n"
         for dataset in datasets:
-            desc += dataset.desc + "\n\n"
+            desc += dataset.name + "\n\n"
         desc += f"Weights: {weights}\n"
         desc += f"Size: {size}\n"
         self.desc = desc