check_snmp_attributes.pl: Argument "v6.0.1" isn't numeric in numeric lt (<) 

Argument "v6.0.1" isn't numeric in numeric lt (<) at /usr/lib64/nagios/plugins/check_snmp_attributes.pl line 1177.

I fixed this by changing the '<' to 'lt' but I am unsure if this breaks the comparison in older versions if gives a numeric value. 
