[Issue 24570] printing a range of ranges consumes sub-ranges

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24570

--- Comment #1 from Steven Schveighoffer <schveiguy at gmail.com> ---
A further note is that an array of arrays is not consumed when printed --
because formatValue has a specialized case for that.

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