Description of problem:
pdns-backend-geo broken in 3.4.10-1 version. PDNS server started normally, but tell nothing about geo-zone.
Downgrade to the version 3.4.8-3 help to fix this problem.

Version-Release number of selected component (if applicable):
pdns-3.4.10-1.el7.x86_64
pdns-backend-geo-3.4.10-1.el7.x86_64
pdns-recursor-3.7.3-1.el7.x86_64
pdns-backend-mysql-3.4.10-1.el7.x86_64
pdns-tools-3.4.10-1.el7.x86_64

pdns-3.4.8-3.el7.x86_64
pdns-backend-mysql-3.4.8-3.el7.x86_64
pdns-recursor-3.7.3-1.el7.x86_64
pdns-backend-geo-3.4.8-3.el7.x86_64
pdns-tools-3.4.8-3.el7.x86_64




How reproducible:
Make query for the geo-zone in both pdns versions. Results are different.

Steps to Reproduce:
1. Start pdns 3.4.10-1
2. Make query for geo-zone, have a blank results.
3. Downgrade pdns to the version 3.4.8-3
4. Start pdns 3.4.8-3
5. Make query for geo-zone, have a proper results.

Actual results:
# host -t ns geo.xyz.tld
geo.xyz.tld has no NS record


Expected results:
# host -t ns geo.xyz.tld
geo.xyz.tld name server ns2.xyz.tld.
geo.xyz.tld name server ns1.xyz.tld.


Additional info:
geo parameters in config file:

geo-zone=geo.xyz.tld
geo-soa-values=ns1.xyz.tld,root
geo-ns-records=ns1.xyz.tld,ns2.xyz.tld
geo-ttl=120
geo-ns-ttl=86400
geo-ip-map-zonefile=/etc/pdns/geo-data/zz.countries.nerd.dk.rbldnsd
geo-maps=/etc/pdns/geo-maps


Logs for pdns 3.4.10-1:
# pdns_server --daemon=no --loglevel=6
Nov 01 22:12:07 Reading random entropy from '/dev/urandom'
Nov 01 22:12:07 Loading '/usr/lib64/pdns/libgeobackend.so'
Nov 01 22:12:07 [geobackend] This is the geo backend version 3.4.10 (Sep  9 2016, 15:50:03) reporting
Nov 01 22:12:07 Loading '/usr/lib64/pdns/libgmysqlbackend.so'
Nov 01 22:12:07 [gmysqlbackend] This is the gmysql backend version 3.4.10 (Sep  9 2016, 15:49:34) reporting
Nov 01 22:12:07 This is a standalone pdns
Nov 01 22:12:07 Listening on controlsocket in '/var/run/pdns.controlsocket'
Nov 01 22:12:07 UDP server bound to 0.0.0.0:53
Nov 01 22:12:07 UDPv6 server bound to [::]:53
Nov 01 22:12:07 TCP server bound to 0.0.0.0:53
Nov 01 22:12:07 TCPv6 server bound to [::]:53
Nov 01 22:12:07 PowerDNS Authoritative Server 3.4.10 (jenkins.com) (C) 2001-2016 PowerDNS.COM BV
Nov 01 22:12:07 Using 64-bits mode. Built on 20160909155148 by mockbuild.fedoraproject.org, gcc 4.8.5 20150623 (Red Hat 4.8.5-4).
Nov 01 22:12:07 PowerDNS comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it according to the terms of the GPL version 2.
Nov 01 22:12:07 Set effective group id to 996
Nov 01 22:12:07 Set effective user id to 997
Nov 01 22:12:07 DNS Proxy launched, local port 43834, remote 127.0.0.1:5300
Nov 01 22:12:07 Creating backend connection for TCP
Nov 01 22:12:07 [geobackend] Parsing IP map zonefile
Nov 01 22:12:08 [geobackend] Finished parsing IP map zonefile: added 147743 prefixes, stored in 362065 nodes using 8689560 bytes of memory
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone1.tld
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone2.tld
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone3.tld
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone4.tld
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone5.tld
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone6.tld
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone7.tld
Nov 01 22:12:08 [geobackend] Parsing director map /etc/pdns/geo-maps/zone8.tld
Nov 01 22:12:08 [geobackend] Finished parsing 8 director map files, 0 failures
Nov 01 22:12:08 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:12:08 About to create 3 backend threads for UDP
Nov 01 22:12:08 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:12:08 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:12:08 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:12:08 Done launching threads, ready to distribute questions


Logs for pdns 3.4.8-3:
# pdns_server --daemon=no --loglevel=6
Nov 01 22:16:20 Reading random entropy from '/dev/urandom'
Nov 01 22:16:20 Loading '/usr/lib64/pdns/libgeobackend.so'
Nov 01 22:16:20 [geobackend] This is the geo backend version 3.4.8 (Jul 22 2016, 16:40:58) reporting
Nov 01 22:16:20 Loading '/usr/lib64/pdns/libgmysqlbackend.so'
Nov 01 22:16:21 [gmysqlbackend] This is the gmysql backend version 3.4.8 (Jul 22 2016, 16:40:10) reporting
Nov 01 22:16:21 This is a standalone pdns
Nov 01 22:16:21 Listening on controlsocket in '/var/run/pdns.controlsocket'
Nov 01 22:16:21 UDP server bound to 0.0.0.0:53
Nov 01 22:16:21 UDPv6 server bound to [::]:53
Nov 01 22:16:21 TCP server bound to 0.0.0.0:53
Nov 01 22:16:21 TCPv6 server bound to [::]:53
Nov 01 22:16:21 PowerDNS Authoritative Server 3.4.8 (jenkins.com) (C) 2001-2015 PowerDNS.COM BV
Nov 01 22:16:21 Using 64-bits mode. Built on 20160722164547 by mockbuild.fedoraproject.org, gcc 4.8.5 20150623 (Red Hat 4.8.5-4).
Nov 01 22:16:21 PowerDNS comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it according to the terms of the GPL version 2.
Nov 01 22:16:21 Set effective group id to 996
Nov 01 22:16:21 Set effective user id to 997
Nov 01 22:16:21 DNS Proxy launched, local port 36711, remote 127.0.0.1:5300
Nov 01 22:16:21 Creating backend connection for TCP
Nov 01 22:16:21 [geobackend] Parsing IP map zonefile
Nov 01 22:16:21 [geobackend] Finished parsing IP map zonefile: added 147743 prefixes, stored in 362065 nodes using 8689560 bytes of memory
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone1.tld
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone2.tld
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone3.tld
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone4.tld
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone5.tld
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone6.tld
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone7.tld
Nov 01 22:16:21 [geobackend] Parsing director map /etc/pdns/geo-maps/zone8.tld
Nov 01 22:16:21 [geobackend] Finished parsing 8 director map files, 0 failures
Nov 01 22:16:21 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:16:21 About to create 3 backend threads for UDP
Nov 01 22:16:21 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:16:21 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:16:21 gmysql Connection successful. Connected to database 'pdns' on '127.0.0.1'.
Nov 01 22:16:21 Done launching threads, ready to distribute questions