Just tried the dev build on Hugo — super happy to find the server is returning nice error messages like this:
hugo server -w ERROR: 2015/05/21 Two or more menu items have the same name/identifier in "main" Menu. Identified as "Docker Hub Enterprise: Quick-start: Basic Workflow". Rename or set a unique identifier. ERROR: 2015/05/21 MenuEntry's .Url is deprecated and will be removed in Hugo 0.15. Use .URL instead. 0 of 11 drafts rendered
Steve tells me @bep added it. Thank you, I was just wishing for this the other day and there it was. Made for a nice present.