added a missing PHPDoc
added a missing PHPDoc

CarsonF/Silex,SpacePossum/Silex,Tobion/Silex,SpacePossum/Silex,mTorres/Silex,fabpot/Silex,tcx1000/Silex,lyrixx/Silex,GromNaN/Silex,mathroc/Silex,peterkokot/Silex,Tobion/Silex,naderman/Silex,peterkokot/Silex,fhinkel/Silex,stof/Silex,akucherevskiy/developex_test,RayRutjes/Silex,arduanov/Silex,stof/Silex,Xephi/Silex,beealone/Silex,cgsmith/Silex,akucherevskiy/developex_test,SanderKnape/Silex,mmauri04/Silex,silexphp/Silex,lokhman/Silex,lyrixx/Silex,romainneutron/Silex,Tobion/Silex,mathroc/Silex,plotek/Silex,Xephi/Silex,CarsonF/Silex,RayRutjes/Silex,fhinkel/Silex,stof/Silex,Incognito/silex-fork,fabpot/Silex,mmauri04/Silex,JPry/Silex,lokhman/Silex,naderman/Silex,arduanov/Silex,cgsmith/Silex,tcx1000/Silex,Incognito/silex-fork,plotek/Silex,lyrixx/Silex,CarsonF/Silex,mTorres/Silex,cesarmarinhorj/Silex,romainneutron/Silex,beealone/Silex,GromNaN/Silex,naderman/Silex,gencer/Silex,jdreesen/Silex,akucherevskiy/developex_test,cesarmarinhorj/Silex,SanderKnape/Silex,JPry/Silex,jdreesen/Silex,peterkokot/Silex,GromNaN/Silex,romainneutron/Silex