message: Change comments in increase_procs test to describe changes in the test
  code.
diff: @@ -703,16 +703,15 @@ TEST(spio_parallel, parallel_increase_procs)
  * This tests the ability to read data when the run that is doing the
  * reading has more processors than the run that created the files
  * being read. In this test we split the world communicator into
  - * single-rank communicators to simulate a serial run that dumps data
  - * from only rank 0. Then the read occurs with an IOManager constructed
  - * with MPI_COMM_WORLD.
  + * smaller communicators to simulate a run that dumps data from
  + * only ranks 0 and 1 (only rank 0 if running on <= 2 processors).
  + * Then the read occurs with an IOManager constructed with
  + * MPI_COMM_WORLD.
  *
  * This functionality only works with the sidre_hdf5 protocol, so this
  * section of code is inside the #ifdef guards.
  */
  - // If there are more than two ranks, this test produces output from only
  - // ranks 0 and 1. If two ranks or fewer, output comes from only rank 0.
  int top_output_rank = 1;
  if (num_ranks <= 2)
  {
  