typo

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@496386 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTasks/jar.html

@@ -263,7 +263,7 @@ completely ignored unless you set the index attribute of the task to
 true.</p>
 
 <p>The index created by this task will contain indices for the
-archives contained in this path, the names used for the archioves
+archives contained in this path, the names used for the archives
 depend on your manifest:</p>
 <ul>
   <li>If the generated jar's manifest contains no Class-Path