Fix tests: Remove trailing whitespaces from escape-pre example.

Author: ricardoricho

spec/html_examples/escape-pre.html

@@ -1,6 +1,6 @@
 <pre class="example">
-&lt;li&gt;[ ] &amp;#8220;smart quotes&amp;#8221;&lt;/li&gt; 
-&lt;li&gt;[ ] I think I need this for &amp;#8216;single quotes&amp;#8217; too. Don&amp;#8217;t I?&lt;/li&gt; 
-&lt;li&gt;[ ] Em dashes would be great &amp;#8212; wouldn&amp;#8217;t they?&lt;/li&gt; 
-&lt;li&gt;[ ] I hope to develop an en dash sometime in 2010 &amp;#8211; 2011.&lt;/li&gt; 
+&lt;li&gt;[ ] &amp;#8220;smart quotes&amp;#8221;&lt;/li&gt;
+&lt;li&gt;[ ] I think I need this for &amp;#8216;single quotes&amp;#8217; too. Don&amp;#8217;t I?&lt;/li&gt;
+&lt;li&gt;[ ] Em dashes would be great &amp;#8212; wouldn&amp;#8217;t they?&lt;/li&gt;
+&lt;li&gt;[ ] I hope to develop an en dash sometime in 2010 &amp;#8211; 2011.&lt;/li&gt;
 </pre>

spec/html_examples/escape-pre.org

@@ -1,6 +1,6 @@
     #+BEGIN_EXAMPLE
-<li>[ ] &#8220;smart quotes&#8221;</li> 
-<li>[ ] I think I need this for &#8216;single quotes&#8217; too. Don&#8217;t I?</li> 
-<li>[ ] Em dashes would be great &#8212; wouldn&#8217;t they?</li> 
-<li>[ ] I hope to develop an en dash sometime in 2010 &#8211; 2011.</li> 
-    #+END_EXAMPLE
+<li>[ ] &#8220;smart quotes&#8221;</li>
+<li>[ ] I think I need this for &#8216;single quotes&#8217; too. Don&#8217;t I?</li>
+<li>[ ] Em dashes would be great &#8212; wouldn&#8217;t they?</li>
+<li>[ ] I hope to develop an en dash sometime in 2010 &#8211; 2011.</li>
+   #+END_EXAMPLE