wow, someone on the Ruby team took a *much too strong* hit from the perl hookah and decided that overloading the unary `+` operator was probably the most intuitive way to represent "duplicate a string"... does unary `!` perform a utf8 to byte array conversion? http://metaredux.com/posts/2019/05/10/weird-ruby-positive-and-negative-strings.html
@robey ruby? Not surprised.
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