update model message

Author: Borda

src/lightning/pytorch/trainer/connectors/callback_connector.py

@@ -106,9 +106,8 @@ def _configure_checkpoint_callbacks(self, enable_checkpointing: bool) -> None:
                 model_checkpoint = LitModelCheckpoint(model_registry=self.trainer._model_registry)
             else:
                 rank_zero_info(
-                    "You are using the default ModelCheckpoint callback."
-                    " Install `pip install litmodels` package to use the `LitModelCheckpoint` instead"
-                    " for seamless uploading to the Lightning model registry."
+                    "Using default `ModelCheckpoint`. Consider installing `litmodels` package to enable"
+                    " `LitModelCheckpoint` for automatic upload to the Lightning model registry."
                 )
                 model_checkpoint = ModelCheckpoint()
             self.trainer.callbacks.append(model_checkpoint)