Instrument Cluster Message

What is your question?

I am wondering if anybody knows why your instrument cluster would show a message "done" where the mileage is shown? I have seen this other times but this time I had been turning the key from the "run position to on position" and back several times. Could it be something to do with the self diagnostic test that runs when the key is turned on? Just wondering if this is a good or bad thing to see?