Fix javadoc and manual errors related to the newly introduced readTimeout attribute for Http condition

manual/Tasks/conditions.html

@@ -218,7 +218,7 @@ URL. By default, HTTP responses errors of 400 or greater are viewed as invalid.<
   <tr>
     <td>readTimeout</td>
     <td>Read timeout, in milli second, that will be used while reading from the target URL.
-      Accepts any value >= 0. Value of 0 implies wait indefinitely. Value < 0 will be silently
+      Accepts any value &ge; 0. Value of 0 implies wait indefinitely. Value &lt; 0 will be silently
       ignored.<br/>
       <em>since Ant 1.10.6</em></td>
     </td>

src/main/org/apache/tools/ant/taskdefs/condition/Http.java

@@ -96,7 +96,7 @@ public class Http extends ProjectComponent implements Condition {
     }
 
     /**
-     * Sets the read timeout. Any value < 0 will be ignored
+     * Sets the read timeout. Any value &lt; 0 will be ignored
      *
      * @param t the timeout value in milli seconds
      *