Updated for latest Pipeline fixes

JENKINS-29711 was fixed and stage step now uses curly braces

Jenkinsfile

@@ -4,9 +4,9 @@
 properties([[$class: 'BuildDiscarderProperty',
                 strategy: [$class: 'LogRotator', numToKeepStr: '10']]])
 
-stage 'Build'
+stage ('Build') {
 
-node {
+  node {
     // Checkout
     checkout scm
 
@@ -20,8 +20,7 @@ node {
     archive (includes: 'pkg/*.gem')
 
     // publish html
-  // "target:" shouldn't be needed, https://issues.jenkins-ci.org/browse/JENKINS-29711.
-  publishHTML (target: [
+    publishHTML ([
         allowMissing: false,
         alwaysLinkToLastBuild: false,
         keepAll: true,
@@ -30,4 +29,5 @@ node {
         reportName: "RCov Report"
       ])
 
+  }
 }