Fix discrepancy in lockfile (#1978)
Fix discrepancy in lockfile (#1978)

So `yarn install` doesn't produce a diff
samselikoff/ember-cli-mirage,unchartedcode/ember-cli-mirage,unchartedcode/ember-cli-mirage,samselikoff/ember-cli-mirage,samselikoff/ember-cli-mirage,unchartedcode/ember-cli-mirage,samselikoff/ember-cli-mirage,unchartedcode/ember-cli-mirage