More passwd/group patches

[Pierre A. Humblet]

>
>I'm pretty sure it's related to setting myself->gid to the new
>DEFAULT_GID 401 in internal_getlogin.  It's perhaps a problem of the
>execution order.  However, I didn't look into the code so far since
>I'm busy with the sec_acl stuff.
>
I think his Windows user name isn't fergus. I will confirm 
that with him and submit a patch to reproduce exactly the old 
behavior in that case. 

Pierre