Updating to support new this.filesSrc property per gruntjs/grunt#606.
Updating to support new this.filesSrc property per gruntjs/grunt#606.

jl9n/grunt-contrib-jshint,christian-bromann/grunt-contrib-jshint,gruntjs/grunt-contrib-jshint,djchie/grunt-contrib-jshint,thomasboyt/grunt-jsxhint,marionm/grunt-contrib-jshint