fix clippy warnings

src/test/mod.rs

@@ -30,6 +30,7 @@ where
     handlers.insert(path.to_string(), Box::new(handler));
 }
 
+#[allow(clippy::write_with_newline)]
 pub fn make_response(
     status: u16,
     status_text: &str,

src/unit.rs

@@ -255,6 +255,7 @@ fn connect_socket(unit: &Unit, use_pooled: bool) -> Result<(Stream, bool), Error
 }
 
 /// Send request line + headers (all up until the body).
+#[allow(clippy::write_with_newline)]
 fn send_prelude(unit: &Unit, stream: &mut Stream, redir: bool) -> IoResult<()> {
     //