reduce nEventsPerJob for 700074 [skip modfiles]

Christian Gutschowrequested to merge
reduce_neventsperjob_700074 into master

Description of bug

nEventsPerJob too large

Changes introduced

reduced nEventsPerJob from 500 to 200 -> this is OK in this case, only because not many jobs have finished yet in production and so the existing files will be obsoleted and the task will effectively run from scratch.

Tests

Issues resolved

Closes #

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