docs/64342: Assumed content of PATH is not defined in Porter's Handbook

[Oliver Eikemeier]

Joe Marcus Clarke wrote:

> I think it's fair to assume that PATH will be (as it pertains to
> @[un]exec commands, post-install commands, etc.):
>
> /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin
>
> This is what it is set to during package builds on pointyhat, and is a
> reasonable default.

PATH is a strange beast, since pkg_add(1) sets it to

   /sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin

for pkg_req, pkg_install and @exec. pkg_delete(1) just inherits the PATH 
given in the environment.
-Oliver