Add a link on each error to explain it.

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@374776 13f79535-47bb-0310-9956-ffa450edef68

pmd/src/plugin-resources/pmd.jsl

@@ -195,8 +195,9 @@
                   <j:forEach var="error" items="${errors}">
                     <tr>
                       <td>
+                        <j:set var="externalInfoUrl" value="${error.attribute('externalInfoUrl').getValue()}"/>
                         <j:set var="errorMessage" value="${error.StringValue}"/>
-                        ${htmlescape.getText(errorMessage)}
+                        ${htmlescape.getText(errorMessage)} - <a href="${externalInfoUrl}" target="_blank">detail...</a>
                       </td>
                       <td>
                         <j:set var="line" value="${error.attribute('line').getValue()}"/>