clearly indicate shuffle=False (#6312)

* Clarify shuffle

* clarify shuffle
Co-authored-by: Kevin Canwen Xu <canwenxu@126.com>

examples/lightning_base.py

@@ -178,10 +178,10 @@ class BaseTransformer(pl.LightningModule):
         return self.train_loader
 
     def val_dataloader(self):
-        return self.get_dataloader("dev", self.hparams.eval_batch_size)
+        return self.get_dataloader("dev", self.hparams.eval_batch_size, shuffle=False)
 
     def test_dataloader(self):
-        return self.get_dataloader("test", self.hparams.eval_batch_size)
+        return self.get_dataloader("test", self.hparams.eval_batch_size, shuffle=False)
 
     def _feature_file(self, mode):
         return os.path.join(