Feature summary (what you would like to be able to do and where):
Libup has a fallback glob to handle the case when an extension GruntFile.js does not provide something. This should include .vue as it is common enough now

Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):
Better rate of automated upgrades when autofix can fix things