Adds an absent() wrapper around snmp_exporter alert condition to account for a missing configuration too, and brushes up the summary text to be more absolute.
Adds an absent() wrapper around snmp_exporter alert condition to account for a missing configuration too, and brushes up the summary text to be more absolute.

stephen-soltesz/prometheus-support,stephen-soltesz/prometheus-support,stephen-soltesz/prometheus-support