Fix coding style.

Patch by Timothée Lacroix <timothee.lacroix@tiolive.com>

slapos/recipe/template/jinja2_template.py

@@ -41,7 +41,7 @@ def umask(mask):
     finally:
         os.umask(original)
 
-def getKey(expression, buildout, _,options):
+def getKey(expression, buildout, _, options):
     section, entry = expression.split(':')
     if section:
         return buildout[section][entry]