Improved logging for migration V21
Improved logging for migration V21

Collect the amount of recovered items for all topics and log the complete amount just once. Instead of logging the amount of recovered items for each topcis.
4minitz/4minitz,RobNeXX/4minitz,4minitz/4minitz,RobNeXX/4minitz,4minitz/4minitz,RobNeXX/4minitz