display pretty newlines

Change-Id: I5f2b46247d24fd2e1019c818bf8754b5a60f8c66
diff --git a/src/com/mirantis/mk/Salt.groovy b/src/com/mirantis/mk/Salt.groovy
index 4ceee99..c8deeeb 100644
--- a/src/com/mirantis/mk/Salt.groovy
+++ b/src/com/mirantis/mk/Salt.groovy
@@ -214,7 +214,7 @@
     for (node in out) {
         if (node.value) {
             println "Node ${node.key} changes:"
-            print new groovy.json.JsonBuilder(node.value).toPrettyString()
+            print new groovy.json.JsonBuilder(node.value).toPrettyString().replaceAll('\\n', '<br>\\n')
         } else {
             println "No changes for node ${node.key}"
         }