The logic change in 57d477514067a37665386968ef0a37abf86e3380 introduced a bug where neither strings nor arrays provided as `args` for shell provisioners would pass validation. This fixes that problem along with a few extras: - split out arg validation into a private method - update comment describing valid args - add a few unit tests around config validation
Vagrant Core Plugins
These are plugins that ship with Vagrant. Vagrant core uses its own plugin system to power a lot of the core pieces that ship with Vagrant. Each plugin will have its own README which explains its specific role.