update canonical tests for num_cores
update canonical tests for num_cores

tfmorris/dedupe,pombredanne/dedupe,nmiranda/dedupe,nmiranda/dedupe,01-/dedupe,datamade/dedupe,neozhangthe1/dedupe,davidkunio/dedupe,datamade/dedupe,davidkunio/dedupe,dedupeio/dedupe,01-/dedupe,tfmorris/dedupe,pombredanne/dedupe,dedupeio/dedupe,neozhangthe1/dedupe