PR:

In the interests of some API cleanup:

I converted all occurances of spawn_child to ap_spawn_child_err, and
removed the spawn_child macro (actually moved it to compat.h)

I then changed ap_spawn_child_err to simply ap_spawn_child, and
ap_spawn_child_err_buff to ap_bspawn_child.

These are all cosmetic and should not change functionality, but I think
this will be of assistance to module authors trying to learn by examples we
set in our code (lord help them!).

Approved in concept by dgaudet & rse.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81392 13f79535-47bb-0310-9956-ffa450edef68