doh this is wrong

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11102 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/dialplan/public.xml

@@ -31,7 +31,7 @@
     </extension>
 
     <extension name="call_debug" continue="true">
-      <condition field="$${call_debug}" expression="^true$" break="never">
+      <condition field="${call_debug}" expression="^true$" break="never">
 	<action application="info"/>
       </condition>
     </extension>