Programming Ruby 3.2 (5th Edition): B4.0 page 581, is that no string is passed

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@noelrappin

page 581, in StringIO, second paragraph, last line : strange is that

[or] the default external encoding is that no string is passed.
                            -----> ^^^^^^^

I would expect : [or] from the default external encoding if no string is passed.

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Change to “StringIO objects take their encoding from the string you pass in—if no string is passed the default external encoding is used.”