Improved setting error messages to jenkins job descriptions

Change-Id: Ia19224b7334d6fd468ecc40be87d5b4df795adc5
diff --git a/generate-cookiecutter-products.groovy b/generate-cookiecutter-products.groovy
index 9f96d61..1d8845d 100644
--- a/generate-cookiecutter-products.groovy
+++ b/generate-cookiecutter-products.groovy
@@ -184,7 +184,7 @@
     } 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 {
         stage ('Clean workspace directories') {