Hi, input from mksh maintainer/developer: do not export KSH_VERSION. That is a clear user error (not just mistake, error). I suggest closing with that.
Independent of that, coreutils ought to move printf to /bin… bye, //mirabilos -- <igli> exceptions: a truly awful implementation of quite a nice idea. <igli> just about the worst way you could do something like that, afaic. <igli> it's like anti-design. <mirabilos> that too… may I quote you on that? <igli> sure, tho i doubt anyone will listen ;)