! Last configuration change at [0-9][0-9]:[0-9][0-9]:[0-9][0-9] EST [A-Z][a-z][a-z] [A-Z][a-z][a-z] [0-9][0-9] 20[0-9][0-9] by userjoeblow
This would be my best guess at it. Keep in mind, the regex engine behind this is not documented and not testable. Normally I would use Visual-Regex or POSIX based regex which I don't need a tool for. However, as Jiri stated they are working on documentation for this. I honestly think it would be easier to request a new feature for the comparison criteria to use the same REGEX engine.