if (menu->current >= menu->top + menu->pagelen)
if (menu->current >= menu->top + menu->pagelen - c && menu->current > 1)
void menu_prev_line (MUTTMENU *menu){  if (menu->top > 0)  {    menu->top--;    if (menu->current >= menu->top + menu->pagelen)      menu->current--;    menu->redraw = REDRAW_INDEX;  }  else    mutt_error _("You cannot scroll up farther.");}