npm audit does not respect istty

[mcandre]

Node.js has a bad history of emitting console control characters in non-interactive terminal contexts. This includes npm audit, which does not redirect or pipe correctly. Try npm audit | less for example.

[jasnell]

For npm audit, there's really nothing we can do here as that project is not a part of Node.js core. I believe there are options for npm for disabling styled output.