Use new Runtime.exec() method of JDK 1.3 instead of antRun if present.

Submitted by:	Jesse Glick <Jesse.Glick@netbeans.com>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@267902 13f79535-47bb-0310-9956-ffa450edef68

docs/index.html

@@ -1134,7 +1134,7 @@ systems.</p>
   <tr>
     <td valign="top">dir</td>
     <td valign="top">the directory in which the command should be executed.</td>
-    <td align="center" valign="top">Yes</td>
+    <td align="center" valign="top">No</td>
   </tr>
   <tr>
     <td valign="top">os</td>
@@ -1146,7 +1146,7 @@ systems.</p>
     <td valign="top">output</td>
     <td valign="top">the file to which the output of the command should be
       redirected.</td>
-    <td align="center" valign="top">Yes</td>
+    <td align="center" valign="top">No</td>
   </tr>
   <tr>
     <td valign="top">failonerror</td>