Clarify comments in test_unpack_zipfile_traversal_windows_drive

Updated comments for clarity and removed redundant lines.

Author: Shrey-N

Lib/test/test_shutil.py

@@ -3536,25 +3536,15 @@ def tearDown(self):
     @unittest.skipUnless(sys.platform == 'win32', 'Windows-specific traversal test')
     @support.requires_zlib()
     def test_unpack_zipfile_traversal_windows_drive(self):
-        # Create a ZIP file with a drive-prefixed path
+        # Create a ZIP file with a drive prefixed path
         zip_path = os.path.join(self.tmp_dir, "test.zip")
         with zipfile.ZipFile(zip_path, 'w') as zf:
-            # zipfile.extractall() should sanitize this to 'D/traversal.txt'
-            # relative to extract_dir.
             zf.writestr("D:/traversal.txt", "found you")
-
-        # Prior to the fix, this might have attempted to write to D:/traversal.txt
-        # With the fix (using extractall()), it's safely joined.
         shutil.unpack_archive(zip_path, self.extract_dir)
-
-        # Check that it didn't go to D:/
         self.assertFalse(os.path.exists("D:/traversal.txt"))
-
-        # Check where it actually went
         found = False
         for root, dirs, files in os.walk(self.extract_dir):
             if "traversal.txt" in files:
                 found = True
                 break
         self.assertTrue(found, "Extracted file not found within extract_dir")
-