Improved setting error messages to jenkins job descriptions

Change-Id: Ia19224b7334d6fd468ecc40be87d5b4df795adc5
diff --git a/test-system-reclass-pipeline.groovy b/test-system-reclass-pipeline.groovy
index d28acba..411edfc 100644
--- a/test-system-reclass-pipeline.groovy
+++ b/test-system-reclass-pipeline.groovy
@@ -76,7 +76,7 @@
 } catch (Throwable e) {
     // If there was an error or exception thrown, the build failed
     currentBuild.result = "FAILURE"
-    currentBuild.description = e.message
+    currentBuild.description = currentBuild.description ? e.message + " " + currentBuild.description : e.message
     throw e
 } finally {
     common.sendNotification(currentBuild.result,"",["slack"])