Add must_use to split, split_off, and split_to #337
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carllerche
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Dec 4, 2019
seanmonstar
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I've noticed a few places in my own code where I've written
self.bytes.split_off(n);, and it would be better to use eithertruncateoradvance. That's because thesplitmethods will make a shallow clone, possibly promoting to an Arc.