pretty print stacktrace

src/main/scala/ch/memobase/App.scala

@@ -44,8 +44,8 @@ object App
       .foreach(rec => reportResult(rec))
   } catch {
     case e: Exception =>
-      logger.error(e.getMessage)
-      logger.info(e.getStackTrace)
+      logger.error(e)
+      logger.info(e.getStackTrace.mkString("\n"))
       sys.exit(1)
   } finally {
     logger.info("Shutting down application")