resolv: fix bug in res_init with ipv6 nameservers
resolv: fix bug in res_init with ipv6 nameservers

Thanks to Christian Krause <chkr plauener.de> for finding and fixing
this!

Signed-off-by: Bernhard Reutner-Fischer <ce1ac9e9ad16abccd7821f371ad381197b4768ac@gmail.com>

joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc