Fix for issue-46: Warnings on STDOUT regarding usage of experimental "given" and "when" keywords
Replaced usage of given/when with if/else constructs.
Now returning "UNKNOWN" when an undefined or empty snmp-value is checked against thresholds instead of returning CRITICAL.
Fixed some indentation regarding mixed usage of tabs and spaces
Fix for issue-46: Warnings on STDOUT regarding usage of experimental "given" and "when" keywords
Replaced usage of given/when with if/else constructs. Now returning "UNKNOWN" when an undefined or empty snmp-value is checked against thresholds instead of returning CRITICAL. Fixed some indentation regarding mixed usage of tabs and spaces