update

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5141 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_core.c

@@ -76,7 +76,7 @@ static void heartbeat_callback(switch_scheduler_task_t *task)
 	send_heartbeat();
 
 	/* reschedule this task */
-	task->runtime += 20;
+	task->runtime = time(NULL) + 20;
 }