Virtualization Host env group started failing for users with centos 7.4
and according to Ansible guide the correct format for env groups should
be "@^" prefix:
http://docs.ansible.com/ansible/latest/yum_module.html
JIRA: APEX-539
Change-Id: I3f71ce4462b33ad0772963869db4ea3c0f6e9e51
Signed-off-by: Tim Rozet <trozet@redhat.com>
(cherry picked from commit 
c4fe041a2cfd586a7b6897c7fbe15c8efb5aef32)
               libvirt-devel,python34-docutils
     - name: Install Virtualization group
       yum:
-        name: "@Virtualization Host"
+        name: "@^Virtualization Host"
     - pip:
         name: python-ipmi
         executable: pip3.4