Follow-up from ATLMCPROD-9332

The following discussion from !1198 (merged) should be addressed:

• @cgutscho started a discussion: (+5 comments)

  Hi @sargyrop - this might be a long shot, but do you think this is something we can catch in the CI? e.g. if there's a variable in MadGraph JOs that has gridpack or grid_pack in the name and it's still set to True, we put out a warning ... ?

  Cheers, Chris

Make logParser fail if the info in Chris's message below appears