Make OGNL expressions compatible with struts 2.0.11.2
Fix description
Fix stdout/stderr check to avoid ruby payloads

[SeeRM #8498]

This knocks out all the non-datastore editing ERROR messages, so we've
got that going for us. Which is nice.
Write a nonstupid regex (2-pass test)
Remove capturing parens and debug hexes.
Land #2669, msftidy Ruby payload std{out,err} fix
Land #2658 - Make OGNL expressions compatible with struts 2.0.11.2