fix off by 1 error in mod_exosip sdp negotiation code. Thanks Pawel for finding this.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@1640 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_exosip/mod_exosip.c

@@ -353,7 +353,7 @@ static switch_status_t exosip_on_init(switch_core_session_t *session)
 			int i;
 			static const switch_codec_implementation_t *imp;
 			for (i = 0; i < tech_pvt->num_codecs; i++) {
-				int x = 1;
+				int x = 0;
 
 				snprintf(tmp, sizeof(tmp), "%u", tech_pvt->codecs[i]->ianacode);
 				sdp_message_m_payload_add(tech_pvt->local_sdp, 0, osip_strdup(tmp));
@@ -1289,7 +1289,7 @@ static switch_status_t exosip_create_call(eXosip_event_t * event)
 
 
 			for (i = 0; i < tech_pvt->num_codecs; i++) {
-				int x = 1;
+				int x = 0;
 
 				for (imp = tech_pvt->codecs[i]->implementations; imp; imp = imp->next) {
 					sdp_add_codec(tech_pvt->sdp_config, tech_pvt->codecs[i]->codec_type, tech_pvt->codecs[i]->ianacode, tech_pvt->codecs[i]->iananame,