Missing `(` in coder server start log and the word Optional)

Version: [`v0.11.0+df89e2c`](https://github.com/coder/coder/commit/df89e2c3b01e3b5838d72f6a8659a116d44712a6)

![image](https://user-images.githubusercontent.com/2022166/197926670-9c3d16a7-a037-44c9-836b-4d2e1d1ef4f1.png)