[PATCH COMMITTED] resolv: Fully initialize struct mmsghdr in send_dg [BZ #23037]

[Florian Weimer]

On 04/09/2018 11:02 AM, Andreas Schwab wrote:
> I think this has no real influence on the use in the resolver since the
> socket it creates isn't a SOCK_SEQPACKET socket.  Do you agree?

It doesn't make a difference today, but the kernel folks might add 
processing for further flags in the future.  Some of the existing MSG_* 
flag look relevant to UDP.

Thanks,
Florian