Fix SPDX header and ruff format in test_linker_dispatch.py

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: cpcloud

cuda_core/tests/test_linker_dispatch.py

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 #
-# SPDX-License-Identifier: LicenseRef-NVIDIA-SOFTWARE-LICENSE
+# SPDX-License-Identifier: Apache-2.0
 
 """Unit tests for Linker backend dispatch logic.
 
@@ -44,15 +44,8 @@ class TestChooseBackend:
             (12, (13, 0), False, False, "driver"),
         ],
     )
-    def test_returns_expected_backend(
-        self, driver_major, nvjitlink_version, has_ltoir, lto_requested, expected
-    ):
-        assert (
-            _linker._choose_backend(
-                driver_major, nvjitlink_version, has_ltoir, lto_requested
-            )
-            == expected
-        )
+    def test_returns_expected_backend(self, driver_major, nvjitlink_version, has_ltoir, lto_requested, expected):
+        assert _linker._choose_backend(driver_major, nvjitlink_version, has_ltoir, lto_requested) == expected
 
     @pytest.mark.parametrize(
         ("driver_major", "nvjitlink_version", "has_ltoir", "lto_requested", "match"),
@@ -70,10 +63,6 @@ def test_returns_expected_backend(
             (12, (13, 0), False, True, "matching major versions"),
         ],
     )
-    def test_raises_when_unsatisfiable(
-        self, driver_major, nvjitlink_version, has_ltoir, lto_requested, match
-    ):
+    def test_raises_when_unsatisfiable(self, driver_major, nvjitlink_version, has_ltoir, lto_requested, match):
         with pytest.raises(RuntimeError, match=match):
-            _linker._choose_backend(
-                driver_major, nvjitlink_version, has_ltoir, lto_requested
-            )
+            _linker._choose_backend(driver_major, nvjitlink_version, has_ltoir, lto_requested)