Index: build.xml
===================================================================
--- build.xml	(revision 1390246)
+++ build.xml	(working copy)
@@ -17,7 +17,15 @@
     limitations under the License.
  -->
 
-<project name="lucene-solr" default="test" basedir=".">
+<project name="lucene-solr" default="-projecthelp" basedir=".">
+  <target name="-projecthelp">
+    <java fork="false" classname="org.apache.tools.ant.Main" taskname="-">
+      <arg value="-projecthelp"/>
+      <arg value="-f"/>
+      <arg value="${ant.file}"/>
+    </java>
+  </target>
+
   <target name="test-help" description="Test runner help">
     <subant target="test-help" inheritall="false" failonerror="true">
       <fileset dir="lucene" includes="build.xml" />
@@ -54,7 +62,7 @@
     </sequential>
   </target>
 
-  <target name="documentation-lint">
+  <target name="documentation-lint" description="Validates the generated documentation (HTML errors, broken links,...)">
     <sequential>
       <subant target="documentation-lint" inheritall="false" failonerror="true">
         <fileset dir="lucene" includes="build.xml" />