Use modern recipe for script generation.

software/erp5testnode/software.cfg

@@ -78,7 +78,7 @@ eggs = slapos.libnetworkcache
 zc.buildout = 1.5.3-dev-SlapOS-005
 
 [eggs]
-recipe = zc.recipe.egg
+recipe = z3c.recipe.scripts
 # Just so buildout executes [slapos.cookbook-repository] before [eggs], as
 # - [eggs] references [slapos.cookbook-repository]
 # - [instance-recipe] needs [slapos.cookbook-repository] to be finished