refactor(gulpfile.js): code style
refactor(gulpfile.js): code style

jeffwhelpley/universal,ufo-github/universal,dbabaioff/universal,dbabaioff/universal,ufo-github/universal,angular/universal,angular/universal,manekinekko/universal,ufo-github/universal,angular/universal,manekinekko/universal,dbabaioff/universal,angular/universal,jeffwhelpley/universal