[illumos-Developer] [REVIEW] 850 system(3C) and similar could just use /bin/sh

[Richard Lowe]

>
>> A small question about _PATH_DEFPATH - is /bin really needed there as
>> it's symlink now or is this going to change?

I left it for completeness.

> Maybe, or maybe not, but in any case, "not (part of) this change set".
> (Do this separately, if at all.)

Given I'm integrating the file for the first time, now is the time to
get it correct.  It _is_ part of this changeset.

-- Rich