refactor: update some logs.

source/dnode/mgmt/mgmt_mnode/src/mmWorker.c

@@ -72,7 +72,7 @@ static void mmProcessRpcMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
     mndPostProcessQueryMsg(pMsg);
   }
 
-  dGTrace("msg:%p, is freed, code:0x%x", pMsg, code);
+  dGTrace("msg:%p is freed, code:%s", pMsg, tstrerror(code));
   rpcFreeCont(pMsg->pCont);
   taosFreeQitem(pMsg);
 }

source/libs/scheduler/src/scheduler.c

@@ -155,8 +155,7 @@ void schedulerFreeJob(int64_t* jobId, int32_t errCode) {
     return;
   }
 
-  SCH_JOB_DLOG("start to free job 0x%" PRIx64 ", errCode:0x%x", *jobId, errCode);
-
+  SCH_JOB_DLOG("start to free job 0x%" PRIx64 ", code:%s", *jobId, tstrerror(errCode));
   schHandleJobDrop(pJob, errCode);
   
   schReleaseJob(*jobId);