_NAME_
validate_data_type_suffix

_PROTOTYPE_
newSuffix = validate_data_type_suffix(suffix)

_SHORT-DESCRIPTION_
Check that a data type archive file suffix is valid

_DESCRIPTION_
Check that a data type archive file suffix is valid.  If it is not
valid, but is recognizable, the suffix is fixed to the valid
version.  If it is not recognizable, the process exits.

_INPUT_
* suffix is a pointer to the suffix string.

_OUTPUT_
* newSuffix is the validated version of suffix.
* If no valid suffix can be determined, the process terminates.