diff --git a/lib/spack/spack/test/concretize.py b/lib/spack/spack/test/concretize.py
index 14c92a17d12..cc0cdcc71ae 100644
--- a/lib/spack/spack/test/concretize.py
+++ b/lib/spack/spack/test/concretize.py
@@ -2947,4 +2947,4 @@ def test_reuse_prefers_standard_over_git_versions(
     with spack.config.override("concretizer:reuse", True):
         test_spec = spack.spec.Spec("zlib-ng@2").concretized()
         assert git_spec.dag_hash() != test_spec.dag_hash()
-        assert standard_spec.dag_hash() == test_spec.dag_hash()
\ No newline at end of file
+        assert standard_spec.dag_hash() == test_spec.dag_hash()
diff --git a/var/spack/repos/builtin.mock/packages/zlib-ng/package.py b/var/spack/repos/builtin.mock/packages/zlib-ng/package.py
index d2efbadbc60..d7f0b3f55b3 100644
--- a/var/spack/repos/builtin.mock/packages/zlib-ng/package.py
+++ b/var/spack/repos/builtin.mock/packages/zlib-ng/package.py
@@ -71,7 +71,6 @@ def flag_handler(self, name, flags):
 
 
 class AutotoolsBuilder(autotools.AutotoolsBuilder):
-
     @run_before("configure")
     def pretend_gcc(self):
         # All nice things (PIC flags, symbol versioning) that happen to the compilers that are