Add missing whitespace to multiline strings (#13916)

src/transformers/modeling_utils.py

@@ -1344,7 +1344,7 @@ class PreTrainedModel(nn.Module, ModuleUtilsMixin, GenerationMixin, PushToHubMix
                     except (UnicodeDecodeError, ValueError):
                         raise OSError(
                             f"Unable to load weights from pytorch checkpoint file for '{pretrained_model_name_or_path}' "
-                            f"at '{resolved_archive_file}'"
+                            f"at '{resolved_archive_file}'. "
                             "If you tried to load a PyTorch model from a TF 2.0 checkpoint, please set from_tf=True."
                         )
 

src/transformers/models/rag/retrieval_rag.py

@@ -122,7 +122,7 @@ class LegacyIndex(Index):
         except EnvironmentError:
             msg = (
                 f"Can't load '{archive_file}'. Make sure that:\n\n"
-                f"- '{index_path}' is a correct remote path to a directory containing a file named {filename}"
+                f"- '{index_path}' is a correct remote path to a directory containing a file named {filename}\n\n"
                 f"- or '{index_path}' is the correct path to a directory containing a file named {filename}.\n\n"
             )
             raise EnvironmentError(msg)