fix return the fputobject response

[prakashsvmx]

fix return the fputobject response

fixes #1345

Test script:

import * as Minio from 'minio'
import * as fs from 'fs'

const s3Client = new Minio.Client({
  endPoint: 'localhost',
  port: 22000,
  useSSL: false,
  accessKey: 'minio',
  secretKey: 'minio123',
  pathStyle: true,
})



const fputTest = async () => {
  const filePath = '/home/prakash/Downloads/test-all-file-types/Sizes/1GB.zip'
  const result = await s3Client.fPutObject('test-bucket', '1GB.zip', filePath)

  console.log(result)
}


fputTest()


// run it like: node examples/fput-object.mjs
{ etag: '9ee79882d70cbc56edf0a2281e4dbb49-16', versionId: null }