mitchellh/vagrant — pull request #1916 by saturnflyer (2013-07-11 14:44:49+00:00)
Title: Add helpful info about which command to run when another command fails.

This provides the suggested command to run in order to proceed with a failed command.

I'm new to the project and ran `vagrant provision` but the error message didn't tell me exactly what to do. I've altered it to specify the exact command to run.