[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

Tests/test_file_png.py

@@ -777,7 +777,7 @@ class MyStdOut:
             mystdout = mystdout.buffer
         with Image.open(mystdout) as reloaded:
             assert_image_equal_tofile(reloaded, TEST_PNG_FILE)
-    
+
     def test_end_truncated_file(self):
         ImageFile.LOAD_TRUNCATED_IMAGES = True
         try:
@@ -787,7 +787,6 @@ def test_end_truncated_file(self):
             ImageFile.LOAD_TRUNCATED_IMAGES = False
 
 
-
 @pytest.mark.skipif(is_win32(), reason="Requires Unix or macOS")
 @skip_unless_feature("zlib")
 class TestTruncatedPngPLeaks(PillowLeakTestCase):