fix(filesizes): Optimize `getRelativeChunkName`, fixes some issues on windows
fix(filesizes): Optimize `getRelativeChunkName`, fixes some issues on windows

DorianGrey/ng-webpack-template,DorianGrey/ng-webpack-template,DorianGrey/ng2-webpack-template,DorianGrey/ng2-webpack-template,DorianGrey/ng2-webpack-template,DorianGrey/ng-webpack-template