lang/mlton: Fix BUILD
- Memory usage has been so extreme that building on i386 build servers
often fails due to slightly imperfect conditions. This is like
because the zone pass was intended to be disabled on modern versions,
but was unintentionally? hardcoded to a specific older version
(corrected).
- Simple fix where bootstrap images for FreeBSD versions >= 13 were
unavailable (if compat13x is needed, then I will add it to
dependencies, but it shouldn't be necessary), so it should build on
FreeBSD 14.x with this change
- While I(bofh) am here pet portclippy/portfmt
- Utilize OPTIONSNG as best as possible
PR: 261820
Approved by: MAINTAINER