title: git: 'send-email' is not a git command. See 'git --help'
body: <p>I'm trying to send patches with the <code>git send-email</code> But I get the following error:</p>
  
  <pre><code>git: 'send-email' is not a git command. See 'git --help'.
  </code></pre>
  
  <p>How to make <code>git send-email</code> works ?</p>
  
  <p>Related links:</p>
  
  <p><a href="http://www.kernel.org/pub/software/scm/git/docs/git-send-email.html" rel="noreferrer">http://www.kernel.org/pub/software/scm/git/docs/git-send-email.html</a></p>