Out of bound panic

[Stephane Martin]

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• [ X] I've searched for any related issues and avoided creating a duplicate issue.

Description

Had once a panic in logs that came from an out of bound array in parser.go.

Reproducible in:

go-audit version: HEAD
OS version(s): Linux Ubuntu 16.04

Steps to reproduce:

??

[Nate Brown]

Would you happen to have a stack trace?