Some platforms use `@` for a Unix socket address, and some leave it empty. In the empty case this causes the rate limiting code to throw a 500 error. This commit standardizes on using `@` for incoming connections over a Unix socket.
Some platforms use `@` for a Unix socket address, and some leave it empty. In the empty case this causes the rate limiting code to throw a 500 error. This commit standardizes on using `@` for incoming connections over a Unix socket.