testing on perl 5.10 and 5.16

/usr/local/src> sudo ./check_rrd -F /usr/local/nagios/libexec/reqs_2647.rrd -D reqs -w 30 -c 50
Argument “” isn’t numeric in numeric le (cal/perl-5.16.1/lib/site_perl/5.16.1/Nagios/Plugin/Range.pm line 98.
RRD OK – :

I having some trouble pulling values with higher versions of perl than 5.8.