pillar/libvirt.py assume certtool is available and works everytime

[damon-atkins]

Description of Issue/Question

salt/pillar/libvirt.py Calls the program certtool several times. However it seems not to check the results or even check if certtool installed. Result in the state which uses this failing without the user understanding why.

Setup

Salt Develop or Prev versions.

Steps to Reproduce Issue

see https://docs.saltstack.com/en/latest/topics/tutorials/cloud_controller.html example

[gtmanfred]

Thanks for reporting this, I have created the above pr to address this issue in 2016.3 and forward

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

If this issue is closed prematurely, please leave a comment and we will gladly reopen the issue.

[gtmanfred]

This is already fixed in #36803