redfishpower: add clarification comment

Problem: There is a small chunk of redfishpower logic surrounding
delayedcmds that could use some extra clarification.

Add note that delayedcmds ready to be sent out will be moved to
the activecmds list.

src/redfishpower/redfishpower.c

@@ -707,8 +707,9 @@ static void shell(CURLM *mh)
  long curl_timeout_ms;
 
  /* First check if there are any delayedcmds to send or are
- * waiting. Setup timeout accordingly if one is
- * waiting */
+ * waiting. If there are some ready to send, put to
+ * activecmds. If not, setup timeout accordingly if one
+ * is waiting */
  if (!list_is_empty(delayedcmds)) {
  ListIterator itr = list_iterator_create(delayedcmds);
  struct powermsg *delaypm;