fix whitespace issues

Author: aterrel

Lib/test/test_csv.py

@@ -1341,7 +1341,7 @@ def test_issue43625(self):
         sniffer = csv.Sniffer()
         self.assertTrue(sniffer.has_header(self.sample12))
         self.assertFalse(sniffer.has_header(self.sample13))
-    
+
     def test_issue119123(self):
         sniffer = csv.Sniffer()
         dialect = sniffer.sniff(self.sample15, ",;")