Add error message to build description

Change-Id: Ifffce007fbe9d3bc47ea57c30ee652b5e0bdb680
diff --git a/test-salt-models-pipeline.groovy b/test-salt-models-pipeline.groovy
index 9bd2ca5..59068d7 100644
--- a/test-salt-models-pipeline.groovy
+++ b/test-salt-models-pipeline.groovy
@@ -115,6 +115,7 @@
     }
   } catch (Throwable e) {
      currentBuild.result = "FAILURE"
+     currentBuild.description = e.message
      throw e
   } finally {
      common.sendNotification(currentBuild.result,"",["slack"])