message: Fix warnings in reduce_join_op_test.py
diff: @@ -160,7 +160,7 @@ class ReduceJoinTest(UnicodeTestCase):
  separator=separator)
  if not reduction_indices:
  truth = constant_op.constant(truth)
  - truth_squeezed = array_ops.squeeze(truth, squeeze_dims=reduction_indices)
  + truth_squeezed = array_ops.squeeze(truth, axis=reduction_indices)
  output_array = output.eval()
  output_keep_dims_array = output_keep_dims.eval()
  truth_array = truth.eval()
  