kola/systemd: Fix regression in previous commit
I missed the inverted logic here.  Strengthen the test
to actively check the service state instead of checking for the
absence of `inactive` in the output text.
@@ -56,5 +56,5 @@ func init() {
func enableSystemdService(c cluster.TestCluster) {
m := c.Machines()[0]
- c.AssertCmdOutputContains(m, "systemctl status nfs-server.service", "inactive")
+ c.AssertCmdOutputContains(m, "systemctl show -p ActiveState nfs-server.service", "ActiveState=active")
}
