SLING-8572 - sling-ide-tooling is reported as broken but is actually successful

Add debug information
diff --git a/src/org/apache/sling/jenkins/SlingJenkinsHelper.groovy b/src/org/apache/sling/jenkins/SlingJenkinsHelper.groovy
index 2c5c9d4..fe0c997 100644
--- a/src/org/apache/sling/jenkins/SlingJenkinsHelper.groovy
+++ b/src/org/apache/sling/jenkins/SlingJenkinsHelper.groovy
@@ -142,6 +142,8 @@
     def change = null;
     def recipientProviders = []
 
+    echo "[DEBUG] current result is ${current}, previous result is ${previous}"
+
     // 1. changes from success or unknown to non-success
     if ( (previous == null || previous == "SUCCESS") && current != "SUCCESS" ) {
         change = "BROKEN"