MMTriggerTool: reduce tool verbosity
Hello,
This MR is downgrading a couple of WARNING to DEBUG, because these are printed out systematically a couple of times for every event, which is not useful. In case the warnings indicate a real problem, then it has to be fixed by experts :-) Bonus: this will make RDOtoRDOTrigger log files smaller.
Adding the urgent flag because it would be very desirable to have this in the MC21a release to be built imminently.
Tagging @fgravili and @masato .
Cheers, Bertrand