Reporting non-standard errors to 21.6 (ATLASJT-408)
We would like to "back-port" developments which recently merged to master branch (see this MR !33267 (merged)).
There is only one change w.r.t master branch in which "print" in test_trfValidation.py has adapted to be consistent with Python2 (see last commit "minor: fixing print").
Edited by Mohsen Rezaei Estabragh