[freeipa PR#2105][opened] [Backport][ipa-4-6] ipa-server-install: fix zonemgr argument validator

[tiran]

   URL: https://github.com/freeipa/freeipa/pull/2105
Author: tiran
 Title: #2105: [Backport][ipa-4-6] ipa-server-install: fix zonemgr argument validator
Action: opened

PR body:
"""
This PR was opened automatically because PR #2099 was pushed to master and backport to
ipa-4-6 is required.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/2105/head:pr2105
git checkout pr2105

[freeipa PR#2105][closed] [Backport][ipa-4-6] ipa-server-install: fix zonemgr argument validator

[tiran]

   URL: https://github.com/freeipa/freeipa/pull/2105
Author: tiran
 Title: #2105: [Backport][ipa-4-6] ipa-server-install: fix zonemgr argument validator
Action: closed

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/2105/head:pr2105
git checkout pr2105