add --> to description

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@475772 13f79535-47bb-0310-9956-ffa450edef68

build.xml

@@ -1915,7 +1915,7 @@ see ${build.junit.reports} / ${antunit.reports}
   </target>
 
   <target name="antunit-tests" depends="dump-info,build,test-init"
-          if="run.antunit">
+          if="run.antunit" description="--> run the antunit tests">
 
     <condition property="antunit.includes" value="${antunit.testcase}"
                else="**/test.xml,**/*-test.xml">