Switch location for goautoneg vendored code
Switch location for goautoneg vendored code

Move to github.com/munnerz/goautoneg as bitbucket is flaky!

Change-Id: Iaa6e964ef0d6f308eea59bcc6f365ecd7dbf0784

Kubernetes-commit: 16fd72d6c91ba466a0e955a1d59a6c8d9e8791bc

kubernetes/apimachinery