MDEV#6316: (post-fix) Using C-style comments in mysqldump.

Author: Nirbhay Choubey

client/mysqldump.c

@@ -4821,7 +4821,7 @@ static int wsrep_add_sst_mode_cmds(MYSQL *mysql) {
  MYSQL_ROW row;
 
  if (mysql_get_server_version(mysql) < 100005) {
- // @@gtid_binlog_state does not exist.
+ /* @@gtid_binlog_state does not exist. */
  return 0;
  }
 
@@ -4830,16 +4830,16 @@ static int wsrep_add_sst_mode_cmds(MYSQL *mysql) {
  return 1;
 
  if (mysql_num_rows(res) != 1)
- // No entry for @@global.gtid_binlog_state, nothing needs to be done.
+ /* No entry for @@global.gtid_binlog_state, nothing needs to be done. */
  return 0;
 
  if (!(row= mysql_fetch_row(res)) || !(char *)row[0])
  return 1;
 
- // first, add a command to turn off binary logging,
+ /* first, add a command to turn off binary logging, */
  fprintf(md_result_file, "SET @@session.sql_log_bin=OFF;\n");
 
- // followed by, a command to set global gtid_binlog_state.
+ /* followed by, a command to set global gtid_binlog_state. */
  fprintf(md_result_file, "SET @@global.gtid_binlog_state='%s';\n",
  (char*)row[0]);