message: Fix a formatting of a cargo fix message
diff: @@ -83,7 +83,7 @@ impl Message {
  config.shell().warn(&msg)?;
  write!(
  config.shell().err(),
  - "The full error message was:\n\n> {}",
  + "The full error message was:\n\n> {}\n\n",
  message,
  )?;
  write!(config.shell().err(), "{}", PLEASE_REPORT_THIS_BUG)?;
  