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corrected to comply with PEP 8

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>

Author: Bolotnyj

Lib/test/test_filecmp.py

@@ -518,8 +518,10 @@ def fake_private_cmp(a, b, sh):
                 return 2
             return original_cmp(a, b, sh)
 
-        with patch("os.stat", side_effect=fake_stat_for_report), \
-            patch("filecmp._cmp", side_effect=fake_private_cmp):
+        with (
+            patch("os.stat", side_effect=fake_stat_for_report),
+            patch("filecmp._cmp", side_effect=fake_private_cmp),
+        ):
 
             dc = filecmp.dircmp(self.dir, self.dir_same)
             _ = dc.subdirs