449's Returns 'Unknown Error Occured' Instead of 'Retry with an x-api-version header'

[yunong]

The Restify docs http://mcavage.github.com/node-restify/restify-versions.7.html state that a 'Retry with an x-api-version header' should be sent back along with the 449 error. However, that is not the case.

Sample response:

{ stack: [Getter/Setter],
arguments: undefined,
type: undefined,
_isError: true,
name: 'HttpError',
httpCode: 449,
restCode: 'UnknownError',
message: 'Unknown error occured.',
details: ...
}

[mcavage]

Will be published in npm@0.5.5