message: Correct timestepping options
diff: @@ -201,9 +201,9 @@ int main(int argc, char *argv[])
  args.AddOption(&order, "-o", "--order",
  "Order (degree) of the finite elements.");
  args.AddOption(&ode_solver_type, "-s", "--ode-solver",
  - "ODE solver: 1 - Backward Euler, 2 - SDIRK2, 3 - SDIRK3,\n\t"
  - "\t 11 - Forward Euler, 12 - RK2, 13 - RK3 SSP, 14 - RK4, \n"
  - "\t 99 - Generalized alpha");
  + "ODE solver: [0--10] - GeneralizedAlpha(0.1 * s),\n\t"
  + "\t 11 - Average Acceleration, 12 - Linear Acceleration\n"
  + "\t 13 - CentralDifference, 14 - FoxGoodwin");
  args.AddOption(&t_final, "-tf", "--t-final",
  "Final time; start time is 0.");
  args.AddOption(&dt, "-dt", "--time-step",
  