SlapObject: buildout.cfg software profile template: extends and profile are not in the same line.

Allows easier hack.

slapos/grid/SlapObject.py

@@ -220,7 +220,8 @@ class Software(object):
           # but you can change it for development purposes.
 
           [buildout]
-          extends = {url}
+          extends =
+            {url}
           """.format(url=url)))
     self._set_ownership(buildout_cfg)