aws/aws-sdk-ruby — pull request #291 by trevorrowe (2013-07-03 16:21:18+00:00)
Title: Resolved an issue with AWS::IAM::VirtualMFADevice#enable.

Passing in string values for a code like '099999' were raising
runtime errors from sprintf. This change prevents string values
from getting passed through sprintf. Added a test to cover this
behavior.

Fixes #288