observing/devnull — Issue #1: logger.error is broken
Author: nicokaiser
Created: 2011-12-01 07:01:55+00:00
State: open

When I call logger.error (like in your example in README.md), the application crashes:

```
2011-12-01 07:59:07 log: (module/_compile) hello world
2011-12-01 07:59:07 info: (module/_compile) pew pew
2011-12-01 07:59:07 error: (module/_compile) oh noes, something goes terribly wrong

node.js:201
throw e; // process.nextTick error, or 'error' event on first tick
^
Error: Uncaught, unspecified 'error' event.
at [object Object].emit (events.js:50:15)
at [object Object].write (/Users/nkaiser/sync/app/test/devnull/node_modules/devnull/lib/logger.js:252:10)
at [object Object].error (eval at levelr (/Users/nkaiser/sync/app/test/devnull/node_modules/devnull/lib/logger.js:429:29))
at Object. (/Users/nkaiser/sync/app/test/devnull/test.js:6:8)
at Module._compile (module.js:432:26)
at Object..js (module.js:450:10)
at Module.load (module.js:351:31)
at Function._load (module.js:310:12)
at Array.0 (module.js:470:10)
at EventEmitter._tickCallback (node.js:192:40)
```