message: In ex17.cpp, recover the original print level, 3, for
  GMRES which was switched to 1 by accident.
diff: @@ -252,7 +252,7 @@ int main(int argc, char *argv[])
  }
  else
  {
  - GMRES(A, M, B, X, 1, 5000, 100, rtol*rtol, 0.0);
  + GMRES(A, M, B, X, 3, 5000, 100, rtol*rtol, 0.0);
  }
  #else
  // 11. If MFEM was compiled with SuiteSparse, use UMFPACK to solve the system.
  