return wantarray ? @rv : pop @rv;
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Is the behavior of list slice subroutine return an intended feature, is it specced somewhere (or even documented)? Or is it just an implementation detail which might some day be considered a bug and be changed thereafter?

Don't golf production code ;-)

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}