typo in signjar's manual

https://bz.apache.org/bugzilla/show_bug.cgi?id=58054

manual/Tasks/signjar.html

@@ -153,7 +153,7 @@ block</td>
     <td valign="top" align="center">No</td>
   </tr>
   <tr>
-    <td valign="top">getTsaproxyport</td>
+    <td valign="top">tsaproxyport</td>
     <td valign="top">proxy port to be used when connecting to TSA server</td>
     <td valign="top" align="center">No</td>
   </tr>