EWS: fix batch move

git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@2321 3d1905a2-6b24-0410-a738-b14d5a86fcbd

src/java/davmail/exchange/ews/EWSMethod.java

@@ -194,7 +194,7 @@ public abstract class EWSMethod extends PostMethod {
     }
 
     protected void writeItemId(Writer writer) throws IOException {
-        if (itemId != null) {
+        if (itemId != null || itemIds != null) {
             if (updates == null) {
                 writer.write("<m:ItemIds>");
             }