fix(image-writer): Fix missing error argv
fix(image-writer): Fix missing error argv

This fixes a missing error argument being passed in .emit()

Change-Type: patch

resin-io/herostratus,resin-io/etcher,resin-io/herostratus,resin-io/etcher,resin-io/resin-etcher,resin-io/resin-etcher,resin-io/etcher,resin-io/etcher,resin-io/etcher