added for multi value xmlproperty test

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@481074 13f79535-47bb-0310-9956-ffa450edef68

src/tests/antunit/taskdefs/xmlproperty.multi.xml

@@ -0,0 +1,4 @@
+<root>
+   <element value="a" />
+   <element value="b" />
+</root>