Security update for pdns

This update for pdns fixes the following issues:

- CVE-2016-5426, CVE-2016-5427: Fix case where crafted queries can cause unexpected backend load.
(boo#998159)

Fixed bugs
bnc#998159
VUL-0: CVE-2016-5426, CVE-2016-5427: pdns, pdns-recursor: Crafted queries can cause unexpected backend load
Selected Binaries
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