sunlightlabs/validictory — pull request #24 by daethorian (2012-04-20 11:05:03+00:00)
Title: Add erroneous additional key to error message

Extends the error message raised by validate_additionalProperties() when an
additional unallowed property is found, by adding the erroneous key to the
error message. This helps give the user a hint of what actually went wrong.