Merge pull request #2475 from taosdata/hotfix/test

[coverity scan]

src/util/src/ttime.c

@@ -56,9 +56,11 @@ int64_t user_mktime64(const unsigned int year0, const unsigned int mon0,
     year -= 1;
   }
 
-  int64_t res = 367*((int64_t)mon)/12;
-
-  res += ((int64_t)(year/4 - year/100 + year/400 + day + year*365) - 719499);  // this value may be less than 0
+  //int64_t res = (((((int64_t) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
+  //               year*365 - 719499)*24 + hour)*60 + min)*60 + sec);
+  int64_t res;
+  res  = 367*((int64_t)mon)/12;
+  res += year/4 - year/100 + year/400 + day + year*365 - 719499;
   res  = res*24;
   res  = ((res + hour) * 60 + min) * 60 + sec;