refactor(gulpfile): clean up code style
refactor(gulpfile): clean up code style

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