Changes in log level don't persist from one test to the next
Changes in log level don't persist from one test to the next

This exposes a bug in spec/rake/yardoc_task_spec.rb. It was passing just because
other specs modified the global log level and never set it back. But if you tried
running it by itself, it would fail.

lsegal/yard,thomthom/yard,lsegal/yard,thomthom/yard,lsegal/yard,amclain/yard,amclain/yard,amclain/yard,thomthom/yard