res/res_pjsip_pubsub: Fix typo in WARNING message

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@424713 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_pjsip_pubsub.c

@@ -2536,7 +2536,7 @@ static pj_bool_t pubsub_on_rx_subscribe_request(pjsip_rx_data *rdata)
 
 	if (expires_header) {
 		if (expires_header->ivalue == 0) {
-			ast_log(LOG_WARNING, "Susbscription request from endpoint %s rejected. Expiration of 0 is invalid\n",
+			ast_log(LOG_WARNING, "Subscription request from endpoint %s rejected. Expiration of 0 is invalid\n",
 				ast_sorcery_object_get_id(endpoint));
 			pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 400, NULL, NULL, NULL);
 				return PJ_TRUE;