I'd like to see some +1s for this from others. I'm not sure that it is a bug not to have the function. I'm not really opposed, I simply would choose to continue adding process attributes rather than more parameters.
I agree with Jeff. I don't think we need to continue to add parameters to apr_proc_create. IIRC, we can reuse procattr across multiple apr_proc_create invocations (might be wrong). Therefore, the presence (or absence) of a child error function makes sense to be where it is now. Functions with really, really, really, really long argument lists are a bit unwieldly.
It isn't a big deal if you don't have a child error function, and I bet the common case would be not to have it anyway. No need to continue to pollute apr_proc_create. -- justin
