Update prometheus binding failure logging format

The output of `{:#?}` for the error details is a bit of annoying,
this change makes a more consistent formatting style for error messages.

substrate/utils/prometheus/src/lib.rs

@@ -87,7 +87,7 @@ async fn request_metrics(
 /// to serve metrics.
 pub async fn init_prometheus(prometheus_addr: SocketAddr, registry: Registry) -> Result<(), Error> {
 	let listener = tokio::net::TcpListener::bind(&prometheus_addr).await.map_err(|e| {
-		log::error!(target: "prometheus", "Error binding to '{:#?}': {:#?}", prometheus_addr, e);
+		log::error!(target: "prometheus", "Error binding to '{:?}': {:?}", prometheus_addr, e);
 		Error::PortInUse(prometheus_addr)
 	})?;