Clarify stderr behavior of modules

patterns.html

@@ -268,6 +268,10 @@ style file with a YAML one.:</p>
     - asdf: 1234</pre>
 </div>
 <p>Tip: Be sure to start your YAML file with the YAML record designator &#8220;&#8212;&#8221;.</p>
+<p>NOTE: variables specified in playbooks will override variables specified
+in the host file.  Further, if a host is in multiple groups, currently, the
+variables set by the last loaded group will win over variables set in other
+groups.  This behavior may be refined in future releases.</p>
 <div class="admonition-see-also admonition seealso">
 <p class="first admonition-title">See also</p>
 <dl class="last docutils">
@@ -291,7 +295,7 @@ style file with a YAML one.:</p>
     <p class="pull-right"><a href="#">Back to top</a></p>
     <p>
         &copy; Copyright 2012 Michael DeHaan.<br/>
-      Last updated on Apr 25, 2012.<br/>
+      Last updated on Apr 27, 2012.<br/>
       Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.0.8.<br/>
     </p>
   </div>