nagios-plugins/nagios-plugins — pull request #1215 by darksoul42 (2013-11-15 02:13:40+00:00)
Title: Handle negative values properly with check_snmp

check_snmp becomes capable of evaluating negative values properly, but it might be returning CRITICALs where it used to return OK and was ignored, if a negative value turns out to actually be a valid value.

If negative values are actually valid, this can be worked around, by adding "~:" to the warning/critical threshold : 100 -> ~:100