Indentation fixing

The simpara in this example is misaligned. Perhaps a good follow up for indentation fixers (sniffers might should use warn/info instead error).

Current:

  <para>
   <example>
      <title>ImagickPixel <function>getColorCount</function></title>
      <programlisting role="php">
      <![CDATA[
<?php
    $imagick = new \Imagick();
    $imagick->newPseudoImage(640, 480, "magick:logo");
    $histogramElements = $imagick->getImageHistogram();
    $lastColor = array_pop($histogramElements);
    echo "Last pixel color count is: ".$lastColor->getColorCount();
?>
]]>
      </programlisting>
        <simpara>
The output for this will be similar to:
    </simpara>
    <screen role="php">
<![CDATA[
Last pixel color count is: 256244
]]>
    </screen>
    </example>
  </para>

Expected:

  <para>
   <example>
      <title>ImagickPixel <function>getColorCount</function></title>
      <programlisting role="php">
      <![CDATA[
<?php
    $imagick = new \Imagick();
    $imagick->newPseudoImage(640, 480, "magick:logo");
    $histogramElements = $imagick->getImageHistogram();
    $lastColor = array_pop($histogramElements);
    echo "Last pixel color count is: ".$lastColor->getColorCount();
?>
]]>
      </programlisting>
      <simpara>
          The output for this will be similar to:
       </simpara>
       <screen role="php">
<![CDATA[
Last pixel color count is: 256244
]]>
       </screen>
    </example>
  </para>

Edit

The current indentation fixer also doesn't yet work fully smooth. Leading whitespace is normalised as if it is wrong whitespace dupllication, although it should reformat the elements correctly

        <row>
         <entry><literal>"compression_alg"</literal></entry>
         <entry>string</entry>
         <entry>Compression algorithm. Both
-	   <literal>"compression_alg"</literal> and <literal>"compression_level"</literal>
-	   must be set in order to enable data compression.
-	 </entry>
+    <literal>"compression_alg"</literal> and <literal>"compression_level"</literal>
+    must be set in order to enable data compression.
+  </entry>
        </row>

Note to self: we might should make fixer order canonical.

Locate the current indentation fixer and reproduce the simpara and row examples from the issue. Compare its output with the expected XML, including leading whitespace and fixer ordering; done when both examples are formatted as shown without incorrect whitespace normalization.