Merge pull request #788 from nuala33/master

Per issue 593, append .yml to each filename used in the generated con…

hack/scripts/generate-rules-configmap.sh

@@ -13,6 +13,6 @@ EOF
 
 for f in assets/prometheus/rules/*.rules.y*ml
 do
-  echo "  $(basename $f): |+"
+  echo "  $(basename "$f"): |+"
   cat $f | sed "s/^/    /g"
 done