Description of problem:
Required correct error message for adding DNS forwardzone without forwarders in the ansible-freeipa Dnsforwardzone module.

Version-Release number of selected component (if applicable):
ansible-freeipa-0.1.10-1.el8.noarch

Steps to Reproduce:

[root@ansible ~]# cat dnsfrwzone01.test
---
- name: Test dnsforwardzone
  hosts: ipaserver
  become: true
  gather_facts: false

  tasks:
  - name: ensure forwardzone test
    ipadnsforwardzone:
      ipaadmin_password: <xxxxxxxx>
      name: newfzone.com

[root@ansible ~]# ansible-playbook -vv -i inventory/server.hosts dnsfrwzone01.test
ansible-playbook 2.9.9
  config file = /root/ansible.cfg
  configured module search path = ['/root/ansible-freeipa/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.6/site-packages/ansible
  executable location = /usr/bin/ansible-playbook
  python version = 3.6.8 (default, Apr  3 2020, 16:09:51) [GCC 8.3.1 20191121 (Red Hat 8.3.1-5)]
Using /root/ansible.cfg as config file

PLAYBOOK: dnsfrwzone01.test ***********************************************************************************************************
1 plays in dnsfrwzone01.test

PLAY [Test dnsforwardzone] ************************************************************************************************************
META: ran handlers

TASK [ensure forwardzone test] ********************************************************************************************************
task path: /root/dnsfrwzone01.test:8
ok: [master.ipadomain.test] => {"ansible_facts": {"discovered_interpreter_python": "/usr/libexec/platform-python"}, "changed": false, "dnsforwardzone": {}}
META: ran handlers
META: ran handlers

PLAY RECAP ****************************************************************************************************************************
master.ipadomain.test      : ok=1    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0  
Actual results:


Expected results:
[root@master ~]# ipa dnsforwardzone-add testzone.com
DNS forwarder: 
ipa: ERROR: invalid 'idnsforwarders': Please specify forwarders.