fluent/fluentd — Issue #9: SetTagKeyMixin does not set tag...
Author: repeatedly
Created: 2011-10-16 08:56:28+00:00
State: open

In SetTagKeyMixin#filter_record:

```ruby
record[@time_key] = @timef.format(time)
```

It's a SetTimeKeyMixin operation.
I think following code is correct.

```ruby
record[@tag_key] = tag
```