Using '-z' option will have rows with trailing delimiter

[lgprobert]

Follow the instruction to build dbgen. Then run below command to stream generated table data to stdout. But the trailing delimiter will be added for every row.

Reproduce command is here for region table:
$ dbgen -v -z -T r
TPC-H Population Generator (Version 2.17.3)
Copyright Transaction Processing Performance Council 1994 - 2010
Generating data for region table/
Preloading text ... 100%
0|AFRICA|lar deposits. blithely final packages cajole. regular waters are final requests. regular accounts are according to |
1|AMERICA|hs use ironic, even requests. s|
...

Suggestion:

1. Make the dbgen behave same with and without '-z' option
2. Ideally add an option to let user choose whether to include line terminator but this is optional
3. When using '-z' option, suppress the dbgen messages and only output the data rows. This is will help downstreaming application can consume the generated data rows much easier.