fix ifndef

git-svn-id: http://svn.openzap.org/svn/openzap/branches/sangoma_boost@875 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/freetdm/src/ozmod/ozmod_sangoma_boost/sangoma_boost_interface.h

@@ -32,8 +32,8 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SANGOMA_BOOST_SIGMOD_H
-#define SANGOMA_BOOST_SIGMOD_H
+#ifndef SANGOMA_BOOST_INTERFACE_H
+#define SANGOMA_BOOST_INTERFACE_H
 
 #include "zap_types.h"