that is, after

  commit dd8f9319
  Author: Sergei Golubchik <serg@mariadb.org>
  Date:   Fri Apr 10 02:36:54 2015 +0200

    be less annoying about sysvar-based table attributes
    do not *always* add them to the create table definition,
    but only when a sysvar value is different from a default.
    also, when adding them - don't quote numbers