Add missing semicolon in `tasks/lib/uglify.js`
Add missing semicolon in `tasks/lib/uglify.js`

JSHint didn't like it not being there.
reppners/grunt-contrib-uglify,tempbottle/grunt-contrib-uglify,cvibhagool/grunt-contrib-uglify,UltCombo/grunt-contrib-uglify,MoLow/grunt-contrib-uglify,denisbabineau/grunt-contrib-uglify,devgrok/grunt-contrib-uglify,okonomiyaki3000/grunt-contrib-uglify,gruntjs/grunt-contrib-uglify,MarianVasile/grunt-contrib-uglify