Some old grunt utils provided for backwards compatibility.
npm install grunt-legacy-util


With the next major release of Grunt, we will no longer support these APIs. Where possible, please use the recommended modules in their place. If you would like to support or improve any of these APIs, please notify us when you have published a backwards compatible npm module—we will then recommend its usage here.
grunt.util.namespace use [getobject] grunt.util.hooker use [hooker] grunt.util.async use [async] grunt.util._ use [lodash] grunt.util.exit use [exit] grunt.util.callbackify grunt.util.error grunt.util.linefeed grunt.util.normalizelf grunt.util.kindOf use [lodash] grunt.util.toArraygrunt.util.repeat grunt.util.pluralize grunt.util.recurse use [traverse] grunt.util.spawn use [require('child_process').spawn]
[getobject]: https://www.npmjs.org/package/getobject
[hooker]: https://www.npmjs.org/package/hooker
[async]: https://www.npmjs.org/package/async
[lodash]: https://www.npmjs.org/package/lodash
[exit]: https://www.npmjs.org/package/exit
[traverse]: https://www.npmjs.org/package/traverse
[require('child_process').spawn]: https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options