Add `choices` to indicate valid `-t` option for running redcap_records.py Usage now displays: [-t {json,csv,xml}] When there is an error we get:    redcap_records.py: error: argument -t/--type: invalid choice: 'csv2' (choose from 'json', 'csv', 'xml')
Add `choices` to indicate valid `-t` option for running redcap_records.py
Usage now displays: [-t {json,csv,xml}]
When there is an error we get:
   redcap_records.py: error: argument -t/--type: invalid choice: 'csv2' (choose from 'json', 'csv', 'xml')

KevinHanson/redi,indera/redi,nrejack/redi,KevinHanson/redi,KevinHanson/redi,nrejack/redi,indera/redi,indera/redi,KevinHanson/redi,KevinHanson/redi,indera/redi,indera/redi,KevinHanson/redi,nrejack/redi,KevinHanson/redi,nrejack/redi,nrejack/redi,nrejack/redi,indera/redi,nrejack/redi