title: replace-char in Emacs Lisp ?
body: <p>Emacs Lisp has <code>replace-string</code> but has no <code>replace-char</code>. I want to replace "typographic" curly quotes (Emacs code for this character is hexadecimal 53979) with regular ASCII quotes, and I can do so with:</p>
  
  <pre><code>(replace-string (make-string 1 ?\x53979) "'")
  </code></pre>
  
  <p>I think it would be better with <code>replace-char</code>. </p>
  
  <p>What is the best way to do this?</p>