came clear that the original codes weren't
    sufficient so now they stand on their own. Here are a list of error codes.
    The description of what they mean is</p>
<div class="informaltable"><table class="table">
<colgroup>
<col align="left">
<col align="left">
</colgroup>
<thead><tr>
<th align="left">Symbol</th>
<th align="left">Description</th>
</tr></thead>
<tbody>
<tr>
<td align="left"><code class="computeroutput">success</code></td>
<td align="left">successful operation - no error returned</td>
</tr