title: BadValue Invalid or no user locale set. Please ensure LANG and/or LC_* environment variables are set correctly
body: <p>When I run <code>mongo</code>, I get the warning:</p>
  
  <blockquote>
    <p>Failed global initialization: BadValue Invalid or no user locale set. Please ensure LANG and/or LC_* environment variables are set correctly.</p>
  </blockquote>