>>> summarize(text, 68, False, ' [...]')
'Why is it that nobody remembers the name of Johann\nGambolputty [...]'
>>> summarize(text, 68, continuation=' >>')
- 'Why is it that nobody remembers the name of Johann Gambolputty de >>'
+ 'Why is it that nobody remembers the name of Johann\nGambolputty de >>'
"""
if text is not None:
if concat: