fail.yaml in kameleon-builder-2.7.7

- old
+ new

@@ -1,10 +1,10 @@
 global:
     arch: x86_64
-    iso_arch: $$arch
+    iso_arch: $${arch}
     iso_filename: debian-jessie-$${iso_arch}-live.iso 
 
 bootstrap:
     - testbootstrap:
-      - toto: $$arch
+      - toto: $${arch}
       - step:
         - exec_local: echo $iso_filename