Fixed comment for arr::callback().
Fixed comment for arr::callback().

madeofpeople/latticeFolio,web-player/kohana,jellycheng/kohana,exlant/kohana,madeofpeople/latticeFolio,Konro1/pms,kebot/GiBeans,JanvanCasteren/kohana,zhangjingpu/kohana,OpenBuildings/jam-resource,mattwadey/kohana,exlant/kohana,ryross/konfig_test,madeofpeople/latticeFolio,driutheman/kohana,16nsk/kohana,anhnt0212/kohana,yeysman/kohana,gartz/KohanaCV,qianzy96/kohana,manyahin/moviestest,dreamsxin/kohana,driutheman/kohana,gold3bear/kohana,enov/Aurora-QA,kohana/kohana,acoulton/slowtask-demo,ajose1024/kohana