Fix package name.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271047 13f79535-47bb-0310-9956-ffa450edef68

proposal/sandbox/junit/src/testcases/org/apache/tools/ant/taskdefs/optional/rjunit/data/build-test.xml

@@ -1,6 +1,6 @@
 <project name="rjunit-tests" basedir="." default="server-and-client">
 
-    <taskdef name="rjunit" classname="org.apache.tools.ant.taskdefs.optional.junit.RJUnitTask"/>
+    <taskdef name="rjunit" classname="org.apache.tools.ant.taskdefs.optional.rjunit.RJUnitTask"/>
 
     <target name="server-and-client">
         <echo message="java.class.path: ${java.class.path}"/>