Seems like this could get more concise and readable, e.g.:
```ruby
MetricFu::Metric.metrics.
                 map(&:name).
                 reject{|name|
                   case name
                   when :hotspots, :stats, :test_coverage then true
                   else false
                   end
                 }.
                 map(&:to_s).
                 each do |metric_name|
```