tighten up log line format

We had a lot of really long log lines, sometimes including object ids
instead of simpler messages. This change tightens those up so it is
easier to follow what is happening in the log.

Change-Id: Id46182e01abd28f46a2377dae236367e1578bbc1
Merge pull request #108 from dhellmann/shorter-log-lines

tighten up log line format