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Simple performance checking indicates this is around 1.1 ± 0.2 times slower than before. I think it doesn't matter as much as the feature does, though.
I might investigate adding a flag for fast printing without that. The binary is already huge (from library code I think) so duplicating the functions a few times probably won't affect it too much.
I will also look into adding a flag for word wrapping, so that space-separated strings are always printed on the same line when possible. That seems useful for human-readable use. I'm not sure if I should make it default though - it will be probably be significantly slower.