Fix a couple of `my_snprintf` arg mismatches

This commit backports two fixes from #3360’s vast discovery.

client/mysqldump.cc

@@ -7285,7 +7285,7 @@ int main(int argc, char **argv)
       goto err;
     connection_pool.for_each_connection([](MYSQL *c) {
       if (start_transaction(c))
-        maybe_die(EX_MYSQLERR, "Failed to start transaction on connection ID %u", mysql->thread_id);
+        maybe_die(EX_MYSQLERR, "Failed to start transaction on connection ID %lu", mysql->thread_id);
     });
   }
 

sql/log.cc

@@ -3901,7 +3901,8 @@ bool MYSQL_BIN_LOG::open(const char *log_name,
           if (!gtid_index)
             sql_print_information("Could not create GTID index for binlog "
                                   "file '%s'. Accesses to this binlog file will "
-                                  "fallback to slower sequential scan.");
+                                  "fallback to slower sequential scan.",
+                                  log_file_name);
         }
         else
           gtid_index= nullptr;