Bug #14725217 PLEASE ADD SQL_MODE=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES TO
Bug #14729792 NO WARNING WHEN MY.CNF EXISTS IN /ETC/MYSQL 
Bug #14735440 WRONG WARNING MESSAGES SHOWN WHEN MYSQL_INSTALL_DB IS RUN
Bug #14735448 NEW MY.CNF NOT CREATED WHEN --DEFAULTS-FILE IS USED WITH MYSQL_INSTALL_DB

  Extending mysql_install_db to install new default
  Handle cases where it exists already, or system file like /etc/my.cnf does