Fix wf:set() command.
Fix wf:set() command.

choptastic/nitrogen,kevinmontuori/nitrogen,nitrogen/nitrogen,stuart-thackray/nitrogen,nitrogen/nitrogen,joaohf/nitrogen,kevinmontuori/nitrogen,joaohf/nitrogen,nitrogen/nitrogen,choptastic/nitrogen,joaohf/nitrogen,kevinmontuori/nitrogen,stuart-thackray/nitrogen,choptastic/nitrogen,stuart-thackray/nitrogen