I wrote a script to make this easier:
```
# cd /install/community-edition-setup/output
# wget https://raw.githubusercontent.com/GluuFederation/community-edition-setup/master/static/scripts/convert_client.py
# chmod u+x convert_client.py
# ./convert_client.py
...answer questions...
```
I'm using the `clients.ldif` as the base file, which is why you need to be in the output folder.