title: How to embed hex values in a lua string literal (i.e. \x equivalent)
body: <p>In various languages, you can embed hex values in a string literal by using the \x escape sequence:</p>
  
  <p><code>"hello \x77\x6f\x72\x6c\x64"</code></p>
  
  <p>How can I do the same thing in Lua 5.1?</p>