Update pintar.py

pintar.py

@@ -60,7 +60,7 @@ if __name__ == "__main__":
     device = "cuda"
     input_image_dir = args.input
     output_directory = args.output
-    model_checkpoint_path = args.checkpoint
+    ckpt_path = args.checkpoint
     reference_image_path = args.reference
     imgsize = 256