eventlogs plugin error (Can't call method "get_data")

[GoogleCodeExporter]

What steps will reproduce the problem?
perl rip.pl -r SYSTEM -p eventlogs

What is the expected output? What do you see instead?
Launching eventlogs v.20081219
eventlogs v.20081219
(System) Gets Event Log settings from System hive

EventLog Configuration
ControlSet001\Services\Eventlog
LastWrite Time Sun Feb  6 12:15:06 2011 (UTC)
Error in plugins/eventlogs.pl: Can't call method "get_data" on an undefined 
value at plugins/eventlogs.pl line 60.

What version of the product are you using? On what operating system?
rrv2.8 + plugins20130429.zip
perl v5.14.2
Ubuntu 12.04 LTS Desktop + SIFT3

Please provide any additional information below.
line 60:                         if ($cn = 
$win->get_value("ComputerName")->get_data()) {
I’m not sure, but I think that get_value("XXXX")->get_data() fails when 
get_value("XXXX") is null.

Original issue reported on code.google.com by [email protected] on 26 Mar 2014 at 2:28