Apply suggestion from @hugovk

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: StanFromIreland

Lib/test/test_compileall.py

@@ -625,9 +625,10 @@ def f(self, ext=ext, switch=switch):
                 ['-m', 'compileall', '-q', self.pkgdir]))
             # Verify the __pycache__ directory contents.
             self.assertTrue(os.path.exists(self.pkgdir_cachedir))
-            expected = ['.gitignore'] + \
-                       sorted(base.format(sys.implementation.cache_tag, ext)
-                              for base in ('__init__.{}.{}', 'bar.{}.{}'))
+            expected = ['.gitignore'] + sorted(
+                base.format(sys.implementation.cache_tag, ext)
+                for base in ('__init__.{}.{}', 'bar.{}.{}')
+            )
             self.assertEqual(sorted(os.listdir(self.pkgdir_cachedir)), expected)
             # Make sure there are no .pyc files in the source directory.
             self.assertFalse([fn for fn in os.listdir(self.pkgdir)