Invalid syntax in warning

[BrettRToomey]

The warning If you want to use models with Fluent, make sure to add the model to the Droplet's preparations array, e.g., drop.preparations += ModelType.self is useful for detecting misconfigured projects, except for the recommended fix is invalid swift. It should be updated to either drop.preparations.append(ModelType.self) or use an array of preparations.

Here's the line of code: https://github.com/vapor/fluent-provider/blob/3c2cb5cf3c0b9cb387f65f8df410e927815985f5/Sources/FluentProvider/Provider.swift#L161