fix jshint reporter not logging errors
fix jshint reporter not logging errors

Introduced in 3afa5e5

feross/standard,John-Lin/standard,xjamundx/standard,tjwudi/standard,Flet/standard,Eruant/standard,LinusU/standard,keis/standard,maxogden/standard,Flet/standard-engine,timbl/standard,mnquintana/standard,jasonpincin/standard,standard/standard,matthieuprat/standard,mattdesl/standard,febeling/standard,JedWatson/happiness,yamafaktory/standard,koddsson/standard,SimenB/standard,Holowaychitos/standard,ricardofbarros/standard-engine,LinusU/standard,cesarandreu/standard,yoshuawuyts/standard,beni55/standard,feross/standard,LinusU/standard-engine,yudiutomo/standard,JedWatson/happiness,watson/standard-engine,TheLady/standard,leecade/standard,stevemao/standard,bradparks/standard,SimenB/standard,driftyco/standard,kublaj/standard,uber/standard,medseek-engineering/standard,salespreso/standard,standard/standard,pombredanne/standard-1,mightyiam/standard,reggi/standard,tk120404/standard,bengl/standard,jden/jsw,ricardofbarros/standard,icemobilelab/icemobile-standard