[td-11818]Fix invalid read in the unit test.

source/client/test/clientTests.cpp

@@ -537,7 +537,6 @@ TEST(testCase, create_topic_Test) {
   if (taos_errno(pRes) != 0) {
     printf("error in use db, reason:%s\n", taos_errstr(pRes));
   }
-  taos_free_result(pRes);
 
   TAOS_FIELD* pFields = taos_fetch_fields(pRes);
   ASSERT_TRUE(pFields == nullptr);

source/libs/scheduler/src/scheduler.c

@@ -1706,7 +1706,7 @@ void scheduleFreeJob(void *job) {
   
   tfree(pJob);
 
-  qDebug("QID:%"PRIx64" job freed", queryId);
+  qDebug("QID:0x%"PRIx64" job freed", queryId);
 }
 
 void schedulerFreeTaskList(SArray *taskList) {