Dear Maintainer,
the current behavior of nptdate is sub-optimal when it is run on a mix
of DNS names and IP addresses and the DNS resolver performs DNSSEC
validation.

I propose two alternative solutions to handle DNS errors:
patch-alt1 disables further DNS lookups, but allows IP addresses to be
used.
patch-alt2 continues resolving in a hope to find a working server.


Cheers,
n-b-f