Optimize kitchen tests for Travis CI

Change-Id: I0b2415df4f5725c3e72fcc34ebace9ad48dc037b
diff --git a/.kitchen.yml b/.kitchen.yml
index 6211b97..d8e1607 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -42,6 +42,6 @@
   - name: single
     provisioner:
       pillars-from-files:
-        helm.sls: tests/pillar/single.sls        
+        helm.sls: tests/pillar/single.sls
 
 # vim: ft=yaml sw=2 ts=2 sts=2 tw=125