code: function copy(cb) {
    return function (existingName, newName, args) {
      function resultCb(result) {
        console.log(text.__('Job %s was copied to job %s'), existingName, newName);
      }
      function jenkinsCb(jenkins) {
        jenkins.copyJob(existingName, newName, cli.exitCb(null, resultCb));
      }
      cb(args, jenkinsCb);
    };
  }
docs: Get a handler that calls Jenkins API to copy a job into a new job.
  Success job copy message will be logged when there's no error.
  
  @param {Function} cb: callback for argument handling
  @return Jenkins API handler function