fix sys test

Author: Fidget-Spinner

Lib/test/test_sys.py

@@ -1686,9 +1686,9 @@ def func():
             return sys._getframe()
         x = func()
         if support.Py_GIL_DISABLED:
-            INTERPRETER_FRAME = '9PihcP'
+            INTERPRETER_FRAME = '9PihcPP'
         else:
-            INTERPRETER_FRAME = '9PhcP'
+            INTERPRETER_FRAME = '9PhcPP'
         check(x, size('3PiccPPP' + INTERPRETER_FRAME + 'P'))
         # function
         def func(): pass