siprtp doesn't initialize 100rel module (thanks Angelos Karageorgiou)

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1657 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/src/samples/siprtp.c b/pjsip-apps/src/samples/siprtp.c
index 2fe135c..292cf47 100644
--- a/pjsip-apps/src/samples/siprtp.c
+++ b/pjsip-apps/src/samples/siprtp.c
@@ -346,6 +346,10 @@
     status = pjsip_ua_init_module( app.sip_endpt, NULL );
     PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
 
+    /* Initialize 100rel support */
+    status = pjsip_100rel_init_module(app.sip_endpt);
+    PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+
     /*  Init invite session module. */
     {
 	pjsip_inv_callback inv_cb;