remove blank lines

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@278530 13f79535-47bb-0310-9956-ffa450edef68

xdocs/external.xml

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         </table>
       </subsection>
 
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       <subsection name="ant4eclipse">
 
         <p>ant4eclipse provides a set of Ant tasks to make several 
@@ -182,11 +179,6 @@
         </table>
       </subsection>
 
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       <subsection name="AntDoc">
 
         <p>AntDoc is a tool that generates HTML documentation from Ant