Comment 0 for bug 1598714

As of now when any api fails, it shows error code twice in the error message.

For Example:
Following error message will be displayed for non existing image:

$ glance image-show <non-existing-image-id>

Error message:
404 Not Found
No image found with ID <non-existing-image-id>
    (HTTP 404)

In this case 404 is shown twice.