message: Fix internal unittest
diff: @@ -115,7 +115,7 @@ class FromConcreteFunctionTest(TestModels):
  root = self._getSimpleVariableModel()
  with self.assertRaises(ValueError) as error:
  _ = lite.TFLiteConverterV2.from_concrete_functions([root.f])
  - self.assertIn('call from_concrete_function', str(error.exception))
  + self.assertIn('call get_concrete_function', str(error.exception))
  @parameterized.named_parameters(
  ('EnableMlirConverter', True), # enable mlir
  