Fix the bug : XmlPullParser initialization depends on the ArrayBuffer object...

Fix the bug : XmlPullParser initialization depends on the ArrayBuffer object passed in ending with '\0'
issue: https://gitee.com/openharmony/commonlibrary_ets_utils/issues/I5QYAUSigned-off-by: Nlihucheng <lihucheng1@huawei.com>

en/application-dev/reference/apis/js-apis-xml.md

@@ -302,7 +302,7 @@ var strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-var arrayBuffer = new ArrayBuffer(strXml.length*2);
+var arrayBuffer = new ArrayBuffer(strXml.length);
 var bufView = new Uint8Array(arrayBuffer);
 var strLen = strXml.length;
 for (var i = 0; i < strLen; ++i) {
@@ -336,7 +336,7 @@ var strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-var arrayBuffer = new ArrayBuffer(strXml.length*2);
+var arrayBuffer = new ArrayBuffer(strXml.length);
 var bufView = new Uint8Array(arrayBuffer);
 var strLen = strXml.length;
 for (var i = 0; i < strLen; ++i) {

zh-cn/application-dev/reference/apis/js-apis-xml.md

@@ -301,7 +301,7 @@ var strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-var arrayBuffer = new ArrayBuffer(strXml.length*2);
+var arrayBuffer = new ArrayBuffer(strXml.length);
 var bufView = new Uint8Array(arrayBuffer);
 var strLen = strXml.length;
 for (var i = 0; i < strLen; ++i) {
@@ -335,7 +335,7 @@ var strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-var arrayBuffer = new ArrayBuffer(strXml.length*2);
+var arrayBuffer = new ArrayBuffer(strXml.length);
 var bufView = new Uint8Array(arrayBuffer);
 var strLen = strXml.length;
 for (var i = 0; i < strLen; ++i) {