fix syntax error in eval_combo.py (#852)

Summary:

Fixing invalid syntax, this is breaking internal tests.

We should follow up with an automated way to catch this in OSS,
but unbreaking first.

Test Plan: CI

Reviewers:

Subscribers:

Tasks:

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Author: vkuzo

torchao/_models/sam/eval_combo.py

@@ -331,7 +331,7 @@ def mlp_only(mod, name):
                   int8_dynamic_activation_int8_weight(),
                   attn_only)
         quantize_(predictor.model.image_encoder, int4_weight_only(layout_type=MarlinSparseLayoutType()), mlp_lin1_only)
-        sparsify_(predictor.model.image_encoder
+        sparsify_(predictor.model.image_encoder,
                   semi_sparse_weight(),
                   mlp_lin2_only)
         if not TORCH_VERSION_AT_LEAST_2_5: