(from 10.1 to 10.0-galera)

This conflicted signficantly with 7d550c76
which added --defaults-group-suffix support.

Took the approach of 4bb49d84 and adapted the
--defaults-group-suffix handling to be consistent.

The following changes as follows:

SST scripts now use $MY_PRINT_DEFAULTS rather than the lowercase for
consistency and this include all required --default arguements.

Backport/merge by Daniel Black <daniel@linux.vnet.ibm.com>