With the old code using humaized time it appears to always round down.
This means a job that will run for an hour and 45 minutes is estimated
to complete in an hour. With these sorts of estimates it is my
experience that it is better to over rather than under estimate as
people will get frustrated if it takes twice as long to get their
results as is stated.
To address this we can provide a more specific estimate. We can say "One
hour 45 minutes" instead of "an hour". This gives users a much better
indication of when they can expect results.
Change-Id: I705a636cd2483cdd2b880093747b720f91e6f0e3