1. I believe the PR should be re-opened.

2. I'm confused:

| This man page only documents behaviour on a.out. ld.aout_so uses
| a colon separated LD_PRELOAD (in contrast to ld.elf_so), so undo last
| commit.

So the syntax of LD_PRELOAD changed from a.out to elf?
That seems rather...bogus. Is there a good reason for it?
If so, is it documented somewhere, or mentioned in the CHANGES file
or the release notes?

Is there a reason why we cannot support both syntaxes?

Is this discussion better had on tech-toolchain@netbsd.org?

--jhawk