title: How to convert list to string in Emacs Lisp
body: <p>How can I convert a list to string so I can call <code>insert</code> or <code>message</code> with it? I need to display <code>c-offsets-alist</code> but I got <code>Wrong type argument: char-or-string-p</code> for insert or <code>Wrong type argument: stringp</code> for message.</p>