fix *.scar to result.scar in ant

etherpad_to_optim/etherpad_to_optim.ant

@@ -41,7 +41,7 @@
         <exec executable="/bin/bash" dir="../hdoc_to_optim">
             <arg value="../hdoc_to_optim/run.sh"/>
         </exec>
-        <copy file="${opti_out}/*.scar" todir="output"/>        
+        <copy file="${opti_out}/result.scar" todir="output"/>        
     </target>
     
     <target name="to_optim_windows" if="${is_windows}">