match style

Author: bkjoh

Lib/test/test_getpass.py

@@ -203,7 +203,7 @@ def test_control_chars_with_echo_char(self):
 
 class GetpassEchoCharTest(unittest.TestCase):
     # Tests for the `echo_char` parameter of `getpass.getpass()`
-    # Successful Validation Cases
+    # Successful Validation Case(s)
     def test_accepts_none(self):
         getpass._check_echo_char(None)