fix comments

dtmsvr/cron.go

@@ -57,6 +57,7 @@ func CronUpdateTopicsMap() {
 	}
 }
 
+// CronUpdateTopicsMap cron updates topics map once
 func CronUpdateTopicsMapOnce() {
 	defer handlePanic(nil)
 	updateTopicsMap()

dtmsvr/storage/boltdb/boltdb.go

@@ -483,6 +483,7 @@ func (s *Store) ResetCronTime(after time.Duration, limit int64) (succeedCount in
 	return
 }
 
+// ResetTransGlobalCronTime reset nextCronTime of one global trans.
 func (s *Store) ResetTransGlobalCronTime(g *storage.TransGlobalStore) error {
 	old := g.UpdateTime
 	err := s.boltDb.Update(func(t *bolt.Tx) error {

dtmsvr/storage/redis/redis.go

@@ -330,6 +330,7 @@ return tostring(i)
 	return
 }
 
+// ResetTransGlobalCronTime reset nextCronTime of one global trans.
 func (s *Store) ResetTransGlobalCronTime(global *storage.TransGlobalStore) error {
 	now := dtmutil.GetNextTime(0)
 	global.NextCronTime = now

dtmsvr/storage/sql/sql.go

@@ -204,7 +204,7 @@ func (s *Store) ResetCronTime(after time.Duration, limit int64) (succeedCount in
 	return affected, affected == limit, err
 }
 
-// reset nextCronTime of one global trans.
+// ResetTransGlobalCronTime reset nextCronTime of one global trans.
 func (s *Store) ResetTransGlobalCronTime(global *storage.TransGlobalStore) error {
 	now := getTimeStr(0)
 	where := map[string]string{