Show how to avoid the -sourcepath switch in <javac>

Submitted by:	Alex Rosen <arosen@silverstream.com>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271355 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTasks/javac.html

@@ -118,7 +118,8 @@ invoking the compiler.</p>
   </tr>
   <tr>
     <td valign="top">sourcepath</td>
-    <td valign="top">the sourcepath to use; defaults to the value of the srcdir attribute (or <code>&lt;src&gt;</code> elements).</td>
+    <td valign="top">the sourcepath to use; defaults to the value of the srcdir attribute (or <code>&lt;src&gt;</code> elements).
+        To suppress the sourcepath switch, use <code>sourcepath=&quot;&quot;</code>.</td>
     <td align="center" valign="top">No</td>
   </tr>
   <tr>