record new failOnError attribute of replaceregexp

see apache#206

WHATSNEW

@@ -43,6 +43,14 @@ Changes that could break older environments:
    updated to launch in a forked JVM so that the System.exit() call
    will not impact the JVM in which Ant process runs.
 
+Other changes:
+--------------
+
+ * <replaceregexp> has a new failOnError attirbute which, when
+   enabled, makes the task throw a BuildException for certain error
+   cases that will only be logged otherwise.
+   Github Pull Request #206
+
 Fixed bugs:
 -----------
 

manual/Tasks/replaceregexp.html

@@ -95,6 +95,15 @@ <h3>Parameters</h3>
       1.8.0</em>.</td>
     <td>No; defaults to <q>false</q></td>
   </tr>
+  <tr>
+    <td>failonerror</td>
+    <td>Stop the build process if certain file operations fail.<br/>
+      For historical reasons the task swallows and logs certain
+      failure cases, enabling this option makes sure the exception
+      make the build fail instead.
+      <em>since Ant 1.10.15</em></td>
+    <td>No; defaults to <q>false</q></td>
+  </tr>
 </table>
 <h3>Examples</h3>
 <pre>

src/main/org/apache/tools/ant/taskdefs/optional/ReplaceRegExp.java

@@ -325,6 +325,7 @@ public void setPreserveLastModified(boolean b) {
      * If false, note errors but continue.
      *
      * @param failonerror true or false
+     * @since Ant 1.10.15
      */
     public void setFailOnError(boolean failonerror) {
         this.failonerror = failonerror;