Works great, with minor tweaks

Worked great, with a few minor tweaks.

I had to run dos2unix on the file in order for it to be read correctly. Once I did that I was able to get correct status information when running from the command line, however Nagios when running as a service would display null. I had to edit the plugin file and change the “use lib” line to be “/usr/local/nagios/libexec”.

Once I did those two changes the plugin worked fine. Thanks for your contribution!