title: Unknown command: "pkg" when running npm command
body: <p>I am facing the issue in running this command</p>
  <pre><code>npm pkg set name=foo3
  Unknown command: &quot;pkg&quot;
  
  To see a list of supported npm commands, run:
    npm help
  </code></pre>
  <p>The <a href="https://docs.npmjs.com/cli/v7/commands/npm-pkg" rel="nofollow noreferrer">documentation</a> says that it is available in <code>7.x</code> release, yet it fails when I run it</p>
  <p>My <code>npm</code> version is</p>
  <pre><code>➜  foo3 git:(master) npm -v
  7.17.0
  </code></pre>
  <p>What am I missing?</p>
  <p>Thank you</p>