MDEV-9058: protocol: COM_MULTI command

Fix of status variable name and order.

sql/mysqld.cc

@@ -3839,7 +3839,6 @@ SHOW_VAR com_status_vars[]= {
   {"checksum",             STMT_STATUS(SQLCOM_CHECKSUM)},
   {"commit",               STMT_STATUS(SQLCOM_COMMIT)},
   {"compound_sql",         STMT_STATUS(SQLCOM_COMPOUND)},
-  {"com_multi",            COM_STATUS(com_multi)},
   {"create_db",            STMT_STATUS(SQLCOM_CREATE_DB)},
   {"create_event",         STMT_STATUS(SQLCOM_CREATE_EVENT)},
   {"create_function",      STMT_STATUS(SQLCOM_CREATE_SPFUNCTION)},
@@ -3885,6 +3884,7 @@ SHOW_VAR com_status_vars[]= {
   {"kill",                 STMT_STATUS(SQLCOM_KILL)},
   {"load",                 STMT_STATUS(SQLCOM_LOAD)},
   {"lock_tables",          STMT_STATUS(SQLCOM_LOCK_TABLES)},
+  {"multi",                COM_STATUS(com_multi)},
   {"optimize",             STMT_STATUS(SQLCOM_OPTIMIZE)},
   {"preload_keys",         STMT_STATUS(SQLCOM_PRELOAD_KEYS)},
   {"prepare_sql",          STMT_STATUS(SQLCOM_PREPARE)},