rails/rails — pull request #10232 by ankane (2013-04-16 06:55:04+00:00)
Title: ActiveSupport::TaggedLogger should render tags on each line of output

```ruby
logger.tagged("REQUEST-XYZ") { logger.info "Hello\nWorld!" }
```

outputs

```
[REQUEST-XYZ] Hello
World!
```

It would be better to output

```
[REQUEST-XYZ] Hello
[REQUEST-XYZ] World!
```

Otherwise, in a distributed environment, you don't know which request generated the second line.