update demo

Author: jeffreykzli

src/main/java/com/qcloud/cos/demo/SetGetObjectAclDemo.java

@@ -17,7 +17,7 @@
 public class SetGetObjectAclDemo {
     public static void setGetObjectAclTest() {
         // 1 初始化用户身份信息(secretId, secretKey)
-	    COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
+	COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
         // 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
         ClientConfig clientConfig = new ClientConfig(new Region("ap-guangzhou"));
         // 3 生成cos客户端