pnp4nagios last update error (No recent data in graph).

rrb_redux.sh

#!/bin/bash
#Author:Anon

#Run against all .rrd files inside /usr/local/pnp4nagios/var/perfdata/
for file in $(find /usr/local/pnp4nagios/var/perfdata/ -name "*.rrd"); do
        rrdtool dump "$file" | perl -ne 'BEGIN {$t=`date +%s`; chomp($t);} $a=$_; if ($a =~ /lastupdate.\d+..lastupdate/) { $a =~ s/(lastupdate.)\d+(..lastupdate)/$1$t$2/; } print $a' | rrdtool restore -f - "$file"
done