some minor bug

Thanks for the plugin.
I ran into a minor issue when trying to run it with check_mk. Executing from shell or MRPE/check_mk worked fine, but not when called from OMD. It will complain, that SVM cannot be executed in Solaris Containers, everything was green.

Reason: ‘zonename’ cannot be found.
Fix: changed to ‘/sbin/zonename’ on both occurrences and it showed correct output.

jg