Add the new task name.

src/task.c

@@ -45,7 +45,8 @@
 const char *taskID_names[task_type_count] = {
     "none",  "sort",    "self",    "pair",    "sub",
     "ghost", "kick1",   "kick2",   "send",    "recv",
-    "link",  "grav_pp", "grav_mm", "grav_up", "grav_down"};
+    "link",  "grav_pp", "grav_mm", "grav_up", "grav_down",
+    "wait"};
 
 /**
  * @brief Unlock the cell held by this task.
@@ -251,4 +252,4 @@ void task_addunlock_old(struct task *ta, struct task *tb) {
   ta->nr_unlock_tasks += 1;
 
   lock_unlock_blind(&ta->lock);
-}
+}
\ No newline at end of file