Update dmFormName when changing paper size in print ui. (resend)

[Nikolay Sivov]

On 20.11.2014 10:42, Ralf Habacker wrote:
> -	  if(Sel != CB_ERR)
> +	  if(Sel != CB_ERR) {
>  	      lpdm->u1.s1.dmPaperSize = SendDlgItemMessageW(hDlg, cmb2,
>  							    CB_GETITEMDATA,
>  							    Sel, 0);
> +	      GetDlgItemTextW(hDlg, cmb2, lpdm->dmFormName, sizeof(lpdm->dmFormName));
> +	  }

This looks wrong, this function takes character length, not byte length.