Smash case when uniqifying nameserver list.
Smash case when uniqifying nameserver list.

NZRS/dnscheck,NZRS/dnscheck,NZRS/dnscheck,dotse/dnscheck,dotse/dnscheck,dotse/dnscheck,dotse/dnscheck,NZRS/dnscheck,NZRS/dnscheck,dotse/dnscheck,NZRS/dnscheck,dotse/dnscheck