message: Update for nightly rustfmt.
diff: @@ -28,13 +28,15 @@ macro_rules! deserialize_method {
  where
  V: de::Visitor<'de>,
  {
  - let v = self.config.$getter(&self.key)?.ok_or_else(||
  - ConfigError::missing(&self.key))?;
  + let v = self
  + .config
  + .$getter(&self.key)?
  + .ok_or_else(|| ConfigError::missing(&self.key))?;
  let Value { val, definition } = v;
  let res: Result<V::Value, ConfigError> = visitor.$visit(val);
  res.map_err(|e| e.with_key_context(&self.key, definition))
  }
  - }
  + };
  }
  impl<'de, 'config> de::Deserializer<'de> for Deserializer<'config> {
  