[DOXIATOOLS-38] use plugin java 5 annotations instead of old-style javadoc annotations: forgot one more change

git-svn-id: https://svn.apache.org/repos/asf/maven/doxia/doxia-tools/trunk@1345791 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 7569327..816af8f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -185,8 +185,17 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-plugin-plugin</artifactId>
+        <configuration>
+          <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
+        </configuration>
         <executions>
           <execution>
+            <id>mojo-descriptor</id>
+            <goals>
+              <goal>descriptor</goal>
+            </goals>
+          </execution>
+          <execution>
             <id>generated-helpmojo</id>
             <goals>
               <goal>helpmojo</goal>