message: Adjusting sample run in ex31p
diff: // Sample runs: mpirun -np 4 ex31p -m ../data/hexagon.mesh -o 2
  // mpirun -np 4 ex31p -m ../data/star.mesh
  // mpirun -np 4 ex31p -m ../data/square-disc.mesh -o 2 -n 4 -rs 1
  -// mpirun -np 4 ex31p -m ../data/square-disc-nurbs.mesh
  +// mpirun -np 4 ex31p -m ../data/square-disc-nurbs.mesh -rs 3 -o 3
  // mpirun -np 4 ex31p -m ../data/amr-quad.mesh -o 2 -rs 1
  // mpirun -np 4 ex31p -m ../data/amr-hex.mesh -rs 1
  // mpirun -np 4 ex31p -m ../data/fichera.mesh -rs 1
  