[libvirt] 2 patches: dead increment and 4 useless (always-false) disjuncts

[Jim Meyering]

Daniel Veillard wrote:
>   Man index is a bit confusing as it uses NULL to designate the '\0'
> character at the end of the string and the NULL pointer. Maybe this led
> to some confusion,
>
>   Your patch sounds right, and Dan probably don't remember the obscure
> details of that patch 2.5 years ago :-)
>
>   ACK

Thanks. Pushed.