Skinny: fix typo

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16815 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/skinny_profiles/internal.xml

 <profile name="internal">
   <settings>
-    <param name="domain" value="$${domain}}"/>
+    <param name="domain" value="$${domain}"/>
     <param name="ip" value="$${local_ip_v4}"/>
     <param name="port" value="2000"/>
     <param name="dialplan" value="XML"/>