title: Gulp run watch task once at start
body: <p>When starting to watch my files, the file system might have changed, when the watch was not on-line. How can I make my watch run the task once at start, after typing in the command <code>gulp dev</code>?</p>
  
  <pre><code>gulp.task('dev', function () {
      gulp.watch('src/**/*', ['scss','inject']);
  }); 
  </code></pre>