Merge pull request #4978 from PhilippHomann/hide-description-pane-if-empty

Don't render description pane when historyWidget.descriptionLimit is 0

core/src/main/resources/hudson/widgets/HistoryWidget/entry.jelly

@@ -74,7 +74,7 @@ THE SOFTWARE.
           </div>
         </j:if>
       </div>
-      <j:if test="${!empty build.description}">
+      <j:if test="${!empty build.truncatedDescription}">
         <div class="pane desc indent-multiline">
           <j:out value="${app.markupFormatter.translate(build.truncatedDescription)}"/>
         </div>