Bug #34909: mysqldump returns a 0 status on error when using

--master-data

No error code was returned by mysqldump if it detects that binary
logging is not enabled on the server.
Fixed by returning error code.

client/mysqldump.c

@@ -3285,6 +3285,7 @@ static int do_show_master_status(MYSQL *mysql_con)
       my_printf_error(0, "Error: Binlogging on server not active",
                       MYF(0));
       mysql_free_result(master);
+      maybe_exit(EX_MYSQLERR);
       return 1;
     }
     mysql_free_result(master);