code: def fill_pager(self, page):
          
          tty_size = os.popen("stty size", "r").read().split()
          rows = int(tty_size[0]) - 1
          lines = sum(1 for line in page.splitlines())
          diff = rows - lines
          fill = "\n" * diff
          if diff > 0:
              return fill
          else:
              return ""
docs: Fix pager spaces