[svn-r8522] Purpose:

Correct missing information for opaque datatype's tag length in the
bitfield for the datatype message.

doc/html/H5.format.html

@@ -3431,7 +3431,12 @@ TABLE.list TD { border:none; }
 	</tr>
 
 	<tr>
-	  <td>0-23</td>
+	  <td>0-7</td>
+	  <td>Length of ASCII tag in bytes.</td>
+	</tr>
+
+	<tr>
+	  <td>8-23</td>
 	  <td>Reserved (zero).</td>
 	</tr>
       </table>