Install grunt-cli without sudo on OS X

[eccegordo]

It seems like a bug that sudo is required to

npm install -g grunt-cli

per the website

"In order to get started, you'll want to install Grunt's command line interface (CLI) globally. You may need to use sudo (for OSX, *nix, BSD etc) or run your command shell as Administrator (for Windows) to do this."

Is there not a way to install without administrator access?

[vladikoff]

@eccegordo see https://github.com/isaacs/npm/issues/3139