never log remote port

This information is basically useless anyway and fills logs needlessly.
Because this is not necessarily true for the local port because multiple ports
may be selected for hosting, logging for the local socket address is unchanged.

src/main.rs

@@ -233,6 +233,7 @@ impl RequestHandle {
                 stream
                     .peer_addr()
                     .expect("could not get peer address")
+                    .ip()
                     .to_string()
             } else {
                 // Do not log IP address, but something else so columns still line up.