Fix code font usage

Author: Dani-Hub

xml/issue4150.xml

@@ -17,7 +17,7 @@ Given that <tt>run_loop::finish()</tt> puts the loop in the <i>finishing</i> sta
 is that one cannot call <tt>finish()</tt> before calling <tt>run()</tt>.
 <p/>
 However, in most cases <tt>sync_wait</tt> is calling <tt>finish()</tt> on its <tt>run_loop</tt> 
-before calling run<tt>()</tt>, violating this precondition. <tt>sync_wait</tt> does the following:
+before calling <tt>run()</tt>, violating this precondition. <tt>sync_wait</tt> does the following:
 </p>
 <blockquote><pre>
 run_loop loop;