[Issue 18596] std.random.unpredictableSeed could use something better than MinstdRand0

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18596

--- Comment #1 from Nathan S. <n8sh.secondary at hotmail.com> ---
Pull request https://github.com/dlang/phobos/pull/6267

--