Do The Right Thing when an iBCS2 program does getgroups(0, whatever) -- we were returning EFAULT, when it is a completely acceptable thing to do. Also, at the same time, be a *bit* optimizing and don't allocate any "stackgrap" memory if we're not going to use it.
Do The Right Thing when an iBCS2 program does getgroups(0, whatever) -- we
were returning EFAULT, when it is a completely acceptable thing to do.
Also, at the same time, be a *bit* optimizing and don't allocate any
"stackgrap" memory if we're not going to use it.

This is another Oracle-discovered problem.

Submitted by:	Steven Wallace

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