While I do not agree with _every_ style change, this will force Dokku to have consistent formatting across all shell scripts, which is arguably a Good Thing™.
The command used to reprocess everything is:
```shell
shfmt -l -bn -ci -i 2 -w .
```
Rather than testing against an install from source, ensure that all tests run from what _would_ be installed on a user's server. This ensures that the build process is sound, regardless of what code changes are implemented.