"ntptrace" and "zipinfo" are old NetBSD 1.3.x a.out binaries.

	If I populate an "/emul/aout" tree with 1.4.3 SPARC libraries, will these
	work again?  (Running under "ktrace", these programs die at the execve()
	of the a.out file.)

	I don't really need many of these old programs to run, but it would be
	cool if they did.  :-)

Before NetBSD/sparc switched to ELF, I was able to run a.out binaries
in /emul/netbsd32.  I have not tried this since the change.  It may
still work.  But that may conflict with having NetBSD/sparc 1.5 in
/emul/netbsd32.

Eduardo