debian: proper file permissions when /opt/freeswitch is a symlink

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16733 d0543943-73ff-0310-b7d9-9358b9ac24b2

debian/postinst

@@ -30,8 +30,8 @@ case "$1" in
 		fi
  
 		mkdir -p /opt/freeswitch
-		chown -R freeswitch:daemon /opt/freeswitch
-		chmod -R o-rwx /opt/freeswitch
+		chown -R freeswitch:daemon /opt/freeswitch/
+		chmod -R o-rwx /opt/freeswitch/
 
     ;;