Update Lib/test/datetimetester.py

shorten test function name

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>

Author: jyalim

Lib/test/datetimetester.py

@@ -1219,7 +1219,7 @@ def test_strptime_F_format(self):
         long_hand = datetime.strptime(test_date,formats["long"])
         self.assertEqual(shorthand,long_hand)
 
-    def test_strptime_C99_shorthand_hour_minute_second(self):
+    def test_strptime_T_format(self):
         formats = dict(short="%T",long="%H:%M:%S")
         test_time = "15:00:00"
         shorthand = datetime.strptime(test_time,formats["short"])