scripts: shorter prefixed list of filtered packages

package.json

@@ -74,6 +74,7 @@
     "obfuscator": "^0.5.4",
     "plist": "^2.1.0",
     "pluralize": "^5.0.0",
+    "prefixed-list": "^1.0.0",
     "typescript": "^2.3.4",
     "vagrant": "0.0.1",
     "vinyl-paths": "^2.1.0",

scripts/run-all.js

@@ -10,6 +10,7 @@ const Promise = require('bluebird')
 const runAll = require('@cypress/npm-run-all')
 const through = require('through')
 const fs = require('fs')
+const prefixedList = require('prefixed-list')
 
 const globAsync = Promise.promisify(glob)
 
@@ -91,7 +92,8 @@ const mapTasks = (cmd, packages) => {
       runCommand = `run ${cmd}`
   }
 
-  console.log('filtered packages:', packages.join(', '))
+  console.log('filtered packages:', prefixedList(packages))
+
   return packages.map((dir, index) => {
     const packageName = packageNameFromPath(dir)
     return {