glauth Update sample-simple.cfg

Fix typo

Thank you for making a pull request!

A few things to be aware of as you're working on your PR:

WIP Tag

Incomplete PRs are more than welcome - it can be useful to collaborate before implementation of an idea is complete. However, if your PR is not ready for merge, please add [WIP] to the end of the title (work-in-progress).

Tests

Before committing, you are encouraged to run the small but growing test suite. This is accomplished by make test. Additionally, if you are adding new functionality, consider adding tests covering your feature.

CI

Each push to a branch connected to a PR will be run through GLAuth's CI system. Please use these to your advantage. In particular, the Github Actions integration tests rely on the LDAP queries returning with a set result, so if your changes will change the output, CI will likely fail.

To update, run make fast && make updatetest && make test. This will delete the output snapshots provided and make new ones. You can then inspect the changes and commit them.

Similarly, check codeclimate and try to fix what you find there if it fails.