RPM spec file fixes:
RPM spec file fixes:

 - added a usermod call to assign a potential existing mysql user to the
   correct user group (BUG#12823)
 - Save the perror binary built during Max build so it supports the NDB
   error codes (BUG#13740)
 - added a separate macro "mysqld_group" to be able to define the
   user group of the mysql user seperately, if desired.


support-files/mysql.spec.sh:
   - added a usermod call to assign a potential existing mysql user to the
     correct user group (BUG#12823)
   - Save the perror binary built during Max build so it supports the NDB
     error codes (BUG#13740)
   - added a separate macro "mysqld_group" to be able to define the
     user group of the mysql user seperately, if desired.

ollie314/server,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,ollie314/server,davidl-zend/zenddbi,davidl-zend/zenddbi,ollie314/server,ollie314/server,natsys/mariadb_10.2,flynn1973/mariadb-aix,davidl-zend/zenddbi,flynn1973/mariadb-aix,natsys/mariadb_10.2,davidl-zend/zenddbi,davidl-zend/zenddbi,davidl-zend/zenddbi,davidl-zend/zenddbi,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,flynn1973/mariadb-aix,davidl-zend/zenddbi,ollie314/server,davidl-zend/zenddbi,natsys/mariadb_10.2,ollie314/server,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,ollie314/server,natsys/mariadb_10.2,natsys/mariadb_10.2,ollie314/server,flynn1973/mariadb-aix,davidl-zend/zenddbi,natsys/mariadb_10.2,natsys/mariadb_10.2,slanterns/server,davidl-zend/zenddbi,flynn1973/mariadb-aix