Consistent spacing

Temporarily… because there are 2 kinds of Ruby developers, those who
indent methods under `private` and does who don’t

https://gist.github.com/joefiorini/1049083#gistcomment-37692

app/models/budget/group.rb

@@ -16,9 +16,9 @@ class Budget
 
     private
 
-      def generate_slug?
-        slug.nil? || budget.drafting?
-      end
+    def generate_slug?
+      slug.nil? || budget.drafting?
+    end
 
   end
 end