[rfa:ppc] Fix PPC/NBSD struct return; Was: userdef.exp regression for ppc?

[Andrew Cagney]

> Here is the patch I checked in.
> 
>         * ppcnbsd-tdep.c (ppcnbsd_init_abi): Don't set
>         use_struct_convention to ppc_sysv_abi_broken_use_struct_convention.
> 

Can I suggest adding a comment to the C file that contains the results 
of your research?  That way, those that follow won't try to put it back 
again :-)

Andrew