Update composer/callbacks/checkpoint_saver.py

Co-authored-by: Daniel King <43149077+dakinggg@users.noreply.github.com>

composer/callbacks/checkpoint_saver.py

@@ -533,7 +533,7 @@ def _save_checkpoint(self, state: State, logger: Logger):
 
             # symlinks stay the same with sharded checkpointing
             if self.latest_remote_file_name is not None:
-                symlink_name = self.latest_remote_file_name.format(state,).lstrip('/') + '.symlink'
+                symlink_name = self.latest_remote_file_name.format(state).lstrip('/') + '.symlink'
 
                 # create and upload a symlink file
                 symlink_filename = os.path.join(