message: minor update to error message
diff: @@ -258,8 +258,8 @@ namespace mfem
  void CVODESolver::Init(TimeDependentOperator &f_)
  {
  - mfem_error("CVODE Initialization error: use the initialization method"
  - "CVODESolver::Init(TimeDependentOperator &f_, double &t, Vector &x)");
  + mfem_error("CVODE Initialization error: use the initialization method\n"
  + "CVODESolver::Init(TimeDependentOperator &f_, double &t, Vector &x)\n");
  }
  void CVODESolver::Init(TimeDependentOperator &f_, double &t, Vector &x)
  @@ -458,8 +458,8 @@ namespace mfem
  void ARKStepSolver::Init(TimeDependentOperator &f_)
  {
  - mfem_error("ARKStep Initialization error: use the initialization method"
  - "ARKStepSolver::Init(TimeDependentOperator &f_, double &t, Vector &x)");
  + mfem_error("ARKStep Initialization error: use the initialization method\n"
  + "ARKStepSolver::Init(TimeDependentOperator &f_, double &t, Vector &x)\n");
  }
  void ARKStepSolver::Init(TimeDependentOperator &f_, double &t, Vector &x)
  