Description of problem:
Administrator email address is set to default (hostmaster@DOMAIN) even when
email address is provided with --zonemgr. It is set correctly for the forward
lookup zone.

Version-Release number of selected component (if applicable):
ipa-server-2.2.0-16.el6.i686

How reproducible: Always


Steps to Reproduce:
1. Install dns
# ipa-dns-install --zonemgr <admin email address>

2. Check the zones
# ipa dnszone-find


Actual results:
Administrator email address is set as expected for the forward lookup zone but
is set to default email address for the revers lookup zone.

Expected results:
Administrator email address is expected to be set as provided by --zonemgr for
both forward and reverse zone.

Additional info:
[root@ipaqa64vmh ~]# ipa-dns-install --ip-address 10.16.98.189 --zonemgr
stv@redhat.com

[root@ipaqa64vmh ~]# ipa dnszone-find
  Zone name: 98.16.10.in-addr.arpa.
  Authoritative nameserver: ipaqa64vmh.testrelm.com.
>>  Administrator e-mail address: hostmaster.98.16.10.in-addr.arpa.
  SOA serial: 2012052901
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Allow query: any;
  Allow transfer: none;

  Zone name: testrelm.com
  Authoritative nameserver: ipaqa64vmh.testrelm.com.
>>  Administrator e-mail address: stv.redhat.com.
  SOA serial: 2012052901
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Allow query: any;
  Allow transfer: none;
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Number of entries returned 2
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