Added a ~cleaner

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268224 13f79535-47bb-0310-9956-ffa450edef68

build.xml

@@ -289,6 +289,9 @@
   <target name="clean">
     <delete dir="${build.dir}"/>
     <delete dir="${ant.dist.dir}"/>
+    <delete>
+      <fileset dir="." includes="**/*~" defaultexcludes="no"/>
+    </delete>
   </target>
 
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