[persistence] fix typo
@@ -168,7 +168,7 @@ static LogSN do_log_buff_write(LogRec *logrec, bool dual_write)
pthread_mutex_lock(&log_buff_gl.log_write_lock);
- /* find the positon to write in log buffer */
+ /* find the position to write in log buffer */
while (1) {
if (logbuff->head <= logbuff->tail) {
assert(logbuff->last == -1);
