cleaned up coverage function
cleaned up coverage function

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