code: def make_default_short_help(help, max_length=45):
      
      words = help.split()
      total_length = 0
      result = []
      done = False
  
      for word in words:
          if word[-1:] == '.':
              done = True
          new_length = result and 1 + len(word) or len(word)
          if total_length + new_length > max_length:
              result.append('...')
              done = True
          else:
              if result:
                  result.append(' ')
              result.append(word)
          if done:
              break
          total_length += new_length
  
      return ''.join(result)
docs: Return a condensed version of help string.